From Farfetch
jet black calf leather double buckle fastening open toe moulded footbed branded insole flat rubber sole slip-on style
From Italist
Arizona SFB Flats in black suede, two straps, buckle closure, rubber outsole, made in Germany, 100% suede
Arizona Sandals from Birkenstock Composition: Leather
Buckled Open Toe Sandals from Birkenstock