Semi-sheer RWS-certified knit virgin wool sweater. · Rib-knit crewneck, hem, and cuffs · Curb chain at collar · Cropped hem · Hook-eye fastening at back collar Made from cruelty-free animals. Supplier color: Natural

Stella McCartney Off-White Falabella Chain Fine-Knit Sweater

Lightweight knit RWS-certified wool and cotton poplin sweater. · Paneled construction · Rib knit crewneck · Rib knit trim at front and back · Button vent at front hem · Shirttail hem · Dropped shoulders · Single-button barrel cuffs · Mother-of-pearl hardware Made from cruelty-free materials. Supplier color: Beige

Stella McCartney Beige Shirting Sweater

Rib knit viscose and polyester-blend sweater. · Paneled construction · O-ring at V-neck Made from cruelty-free, non-animal materials. Supplier color: Black

Stella McCartney Black V-Neck Sweater

Long sleeve brushed nylon jersey sweater in pink featuring jacquard text in orange. · Rib knit crewneck collar, cuffs, and hem · Cut-out at sleeves Made from cruelty-free, non-animal materials. Supplier color: Multicolor

Stella McCartney Pink & Orange Striped 'Smile' Sweater

Knit virgin wool and cotton-blend sweater. Embroidered appliqués and jacquard graphic pattern throughout. · Rib knit crewneck, hem, and cuffs · Jacquard text at side seams and sleeves · Dropped shoulders · Balloon sleeves · Vent at extended cuffs Made from cruelty-free materials. Supplier color: Multicolor

Stella McCartney Blue & Purple Tree Of Life Sweater

Knit cashmere- and wool-blend sweater. · Open spread collar at V-neck · Rib knit collar, hem, and cuffs · Saddle shoulders Made from cruelty-free materials. Supplier color: Beige

Stella McCartney Beige V-Neck Sweater

Brushed knit RAS-certified alpaca-blend sweater. Intarsia graphics throughout. · Rib knit crewneck, hem, and cuffs · Fringe detailing at side seam Supplier color: Multicolor

Stella McCartney Gray Intarsia Sweater

Knit stretch cashmere- and wool-blend sweater. · Rib knit crewneck, hem, and cuffs · Twisted detailing and cutout at shoulder · Raglan sleeves Made from cruelty-free materials. Supplier color: Forest green

Stella McCartney Green Shifting Knot Sweater

Rib knit and textured knit wool-blend sweater. Loose thread detailing and intarsia pattern throughout. · Paneled construction · Dropped shoulders Made from cruelty-free materials. Supplier color: Multicolor

Stella McCartney Multicolor Landscape Sweater

Long sleeve nylon-blend sweater in beige featuring iridescent thread. Made from cruelty-free materials. Supplier color: Natural

Stella McCartney Knit Tinsel Opalescent Crewneck Sweater

Knit cotton and nylon-blend sweater. · Vent at rib knit crewneck and cuffs · Rib knit hem Supplier color: Beige

Stella McCartney Beige Vented Sweater

Viscose-blend jersey sweater in blue. Perforated detailing throughout. · Half-zip closure · Rib knit crewneck, cuffs, and hem Made from cruelty-free, non-animal materials. Supplier color: Cobalt blue

Stella McCartney Blue Viscose Zip Sweater

Long sleeve nylon-blend sweater in black featuring iridescent thread in orange. Made from cruelty-free materials. Supplier color: Copper

Polyester and wool-blend shearling sweater. · Rib knit V-neck, cuffs, and hem · Knit trim at armscyes · Logo embroidered at front hem · Unlined Supplier color: Natural

Long sleeve knit cotton and nylon-blend sweater in multicolor. Part of the Stella McCartney x Myfawny collaboration. Made from cruelty-free, non-animal materials. Supplier color: Rose multi

Stella McCartney Pink Myfawny Edition Sun Sweater

Knit cotton and nylon-blend sweater. · Rib knit crewneck, cuffs, and hem · Jacquard knit graphic throughout Part of the Stella McCartney Disney Fantasia capsule collection. Supplier color: Multicolor

Stella McCartney Black Fantasia Rainbow Mickey Sweater

Polyester- and virgin wool-blend fleece sweater. · Jacquard stripe pattern throughout · Rib knit crewneck, hem, and cuffs Made from cruelty-free materials. Supplier color: Camel/Cream

Stella McCartney Brown Stripe Sweater

Rib knit cotton sweater. · Asymmetric construction · Crewneck Made from cruelty-free, non-animal materials. Supplier color: Light camel

Stella McCartney Tan Asymmetric Sweater

Rib knit viscose and polyester-blend sweater. · Crewneck · Bishop sleeves Supplier color: Rust

Stella McCartney Red Sensual Sweater

beige lobster claw fastening crew neck long sleeves

Stella McCartney Falabella-chain fine-knit sweater

blush pink wool blend ribbed knit roll neck long sleeves We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You at the time it was added on FARFETCH. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney ribbed turtleneck sweater

medium beige virgin wool cotton layered effect round neck long sleeves buttoned-cuff sleeves curved hem front button fastening We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You at the time it was added on FARFETCH. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney layered-effect jumper

taupe brown ribbed cuffs and hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You at the time it was added on FARFETCH. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

taupe brown wool ribbed knit roll neck long sleeves shoulder pads ribbed trim thumb slots straight hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You at the time it was added on FARFETCH. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney long-sleeve turtleneck jumper

ruby red virgin wool knitted construction gold-tone logo plaque round neck long sleeves straight hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You at the time it was added on FARFETCH. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney wool jumper

ochre brown virgin wool fine knit crew neck drop shoulder long sleeves with split cuffs straight hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You at the time it was added on FARFETCH. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney fine-knit sweater

Stella McCartney Metal Marble Detailed Cardigan in Grey 83% wool 17% polyamide. Made in Italy. Hand wash. Front button closure. Ribbed knit fabric at trim. Item not sold as a set. SMCC-WK123. 6K07903S2501. About the designer: British designer Stella McCartney cut her teeth at Christian Lacroix, honed her skills on Savile Row, and refined her style as chief designer at Chloe before debuting her eponymous line in 2001. Known for tailored, feminine silhouettes, McCartney's easy aesthetic and cruelty-free clothing is a favorite with an international roster of trendsetters.

Stella McCartney Metal Marble Detailed Cardigan in Grey

grey/multicolour alpaca wool-blend/organic cotton distressed effect embroidered design crew neck drop shoulder long sleeves straight hem ribbed trim draped tassel detailing We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney Folk graphic-embroidered jumper

light grey cashmere blend fine ribbed twist detailing crew neck long raglan sleeves straight hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney twist-detail ribbed jumper

pink/multicolour wool-cotton blend intarsia knit knitted construction ribbed edge long sleeves round neck straight hem POSITIVELY CONSCIOUS: We've partnered with Good On You — an ethical agency that rates how sustainably brands perform across various people, planet and animal welfare criteria. This product comes from a Conscious brand that performs well in relation to their impact on animals.

Stella McCartney Pacman-intarsia knitted jumper

medium grey wool-cashmere blend knitted construction mélange effect polo collar ribbed V-neck drop shoulder long sleeves ribbed cuffs and hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You at the time it was added on FARFETCH. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney mélange polo sweater

grey virgin wool blend knitted construction crew neck long sleeves ribbed cuffs and hem front button fastening We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You at the time it was added on FARFETCH. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney crew-neck cardigan

black virgin wool knitted construction round neck long sleeves split cuffs straight hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney Iconics split-cuff jumper

Spring 2022 is a time for renewal and a return to (night)life, made for Stella women who live in the moment and are conscious of tomorrow. The collection blends the nostalgic with the futuristic, connecting the experimental aesthetics of Y2K music subcultures and club kids to the digital youth of today.

Stella McCartney Stella Mc Cartney - Gamer Cropped Knit Sweater

Stella McCartney Stella Mc Cartney - Striped Jacquard Knit Sweater

multicolour cotton intarsia knit patterned jacquard round neck long sleeves split cuffs straight hem Conscious: We've partnered with Good On You – an ethical agency that rates how sustainably brands perform. This product comes from a brand that performs well in relation to their impact on animals.

Stella McCartney Tree Of Life jacquard jumper

pale pink/yellow wool horizontal stripe pattern ribbed edge scoop neck drop shoulder long sleeves POSITIVELY CONSCIOUS: We've partnered with Good On You — an ethical agency that rates how sustainably brands perform across various people, planet and animal welfare criteria. This product comes from a Conscious brand that performs well in relation to their impact on animals.

Stella McCartney stripe-print jumper

Stella McCartney Stella Mc Cartney - Striped Knit Sweater

dark grey virgin wool knitted construction mélange effect crew neck drop shoulder long sleeves with split cuffs ribbed cuffs and hem straight hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You at the time it was added on FARFETCH. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney virgin wool sweater

camel brown cashmere blend ribbed knit knot detailing crew neck long sleeves straight hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney knot-detail knitted jumper

black ribbed knit cut-out detailing V-neck long sleeves Conscious: We've partnered with Good On You – an ethical agency that rates how sustainably brands perform. This product comes from a brand that performs well in relation to their impact on animals.

Stella McCartney cut-out ribbed jumper

Stella McCartney Stella Mc Cartney - Short Sleeved Compact Knit Sweater

black knitted construction crew neck short sleeves side slits high-low hem POSITIVELY CONSCIOUS: We've partnered with Good On You — an ethical agency that rates how sustainably brands perform across various people, planet and animal welfare criteria. This product comes from a Conscious brand that performs well in relation to their impact on animals.

Stella McCartney Strong Silhouette short-sleeve knitted jumper

light grey/dark grey cotton knitted construction colour-block design crew neck long sleeves ribbed cuffs asymmetric hem POSITIVELY CONSCIOUS: We’ve joined forces with ethical agency Good On You to give you the power to choose positively. This piece is from a brand that scores well on their key criteria.

Stella McCartney oversized colour-block jumper

multicolour virgin wool geometric-pattern print patterned jacquard V-neck drop shoulder long sleeves straight hem ribbed trim Conscious: We've partnered with Good On You – an ethical agency that rates how sustainably brands perform. This product comes from a brand that performs well in relation to their impact on animals.

Stella McCartney geometric-jacquard knit jumper

white cotton logo patch at the chest crew neck drop shoulder long sleeves cropped We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You at the time it was added on FARFETCH. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney S-Wave cropped sweatshirt

black cotton jersey fleece mélange effect cable-link chain drop shoulder long sleeves ribbed trim straight hem Conscious: We've partnered with Good On You – an ethical agency that rates how sustainably brands perform. This product comes from a brand that performs well in relation to their impact on animals.

Stella McCartney chain-link cotton sweatshirt

rust red organic cotton crew neck signature diamond-cut chain-link trim drop shoulder long sleeves ribbed trim oversize style Conscious: We've partnered with Good On You – an ethical agency that rates how sustainably brands perform. This item comes from a brand that performs well in relation to their impact on the planet.

Stella McCartney Falabella chain sweatshirt

off-white cotton logo embellishment rhinestone embellishment crew neck long sleeves straight hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney rhinestone-embellished logo sweatshirt

black virgin wool fine knit decorative button detailing V-neck drop shoulder long sleeves We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney Stella Iconics V-neck jumper

camel beige virgin wool/wool-blend panelled design crew neck long raglan sleeves ribbed edge step hem oversized style POSITIVELY CONSCIOUS: We've partnered with Good On You — an ethical agency that rates how sustainably brands perform across various people, planet and animal welfare criteria. This product comes from a Conscious brand that performs well in relation to their impact on animals.

Stella McCartney contrast-panel wool jumper

medium grey virgin wool fine knit decorative button detailing V-neck drop shoulder long sleeves straight hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's A Start'). This item comes from a brand rated three out of five ('It's A Start') by Good on You. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney Stella Iconics v-neck jumper

black cotton jersey texture logo print to the front crew neck long sleeves ribbed cuffs and hem French terry lining straight hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You at the time it was added on FARFETCH. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page.

Stella McCartney logo-print cotton sweatshirt

camel brown virgin wool knitted construction ribbed V-neck long sleeves drop shoulder gold-tone logo plaque V-back ribbed cuffs and hem loose fit This item is certified to high animal welfare standards, ensuring that no animals have been subjected to any unnecessary harm for the purposes of making this item and that there is traceability in the supply chain. We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You at the time it was added on FARFETCH. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney v-neck long sleeve jumper

grey cotton appliqué logo crew neck drop shoulder long sleeves ribbed cuffs raw-cut hem cropped We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You at the time it was added on FARFETCH. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

grey cotton crew neck logo print at the chest drop shoulder long sleeves straight hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You at the time it was added on FARFETCH. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

dark blue recycled cashmere crew neck cold-shoulder design long sleeves asymmetric hem Conscious: This item is made from at least 50% recycled or upcycled materials. For recycled synthetic clothing products we highly recommend using a microfibre-catching washing bag to ensure that no microplastics that can pollute water are released in the process.

Stella McCartney asymmetric cold-shoulder cashmere jumper

blue wool blend brushed finish knitted construction V-neck front button fastening long sleeves straight hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartney V-neck brushed-effect cardigan

orange wool-cashmere blend crew neck long sleeves asymmetric hem ribbed-knit edge embroidered logo to the front POSITIVELY CONSCIOUS: We've partnered with Good On You — an ethical agency that rates how sustainably brands perform across various people, planet and animal welfare criteria. This product comes from a Conscious brand that performs well in relation to their impact on animals.

Stella McCartney waterfall-hem fine-knit jumper

camel brown virgin wool blend knitted construction brushed finish crew neck long sleeves straight hem We've partnered with Good On You — an independent agency that rates how brands perform in relation to their impact on the planet, people and animals, with a multi-criteria rating simplified to a five points scale. In order to be awarded our conscious label, larger brands need to score a minimum of four out of five ('Good'), while smaller brands must score at least three out of five ('It's a start'). This item comes from a brand rated four out of five ('Good') by Good on You. Please note, this is a brand-level rating and does not guarantee that this product is made with conscious materials. Learn more about what makes a product Conscious on our Conscious Criteria page

Stella McCartneycut-out ribbed jumper

Available in 2 Choices

Product Info

Stella McCartney cut-out ribbed jumper

Stella McCartney Black V-Neck Sweater