Islay Leather Lace-up shoes in, available in size 6.5. Mens Marvin& Co Islay 5-hole lace-up leather Derby shoes with round toe, leather sole & a small 1.5-cm heel. The trendy French br&, Marvin& Co, brings us the Islay: an all-leather Derby with genuine Goodyear stitching that combines elegance & comfort in a classic design. A must-have!