Modern Derby shoes by BOSS. Set on a rubber outsole for comfort, these lace-up shoes are crafted in grained leather, embossed with a subtle logo and trimmed with a signature-stripe flag.Laces. Fully lined.Upper material: 100% Cow skin, 100% Cow skin, Sole: 100% Rubber, Innersole: 100% Cow skin. Mens BOSS Larry Derby Shoes in black. Modern Dressy BOSS shoes. Full soft natural grainy derby upper design. Rubber sole enriched by BOSS logo on the side.