From Farfetch
black calf leather rear zip fastening rear touch-strap fastening detail front lace-up fastening debossed logo to the rear logo-embroidered tongue round toe removable branded leather insole ankle-length logo embossed at the sole flat rubber sole
From Italist
85% Calf Leather, 15% Polyamide Lining:, 88% Calf Leather, 12% Polyamide Sole:, 100% Rubber