Boat shoes in 100% sueded cowhide leather with saddle detail. Flexible insoles in 100% goatskin leather. 100% cotton interior lining. Contrasting color rubber sole. LEATHER: The material used to make each product has its own unique features. Any possible markings or color variations are signs of the authentic nature of the leather used. STARFIT® TECHNICAL FOAM INSOLE: Flexible technical insole made with polyurethane foam. Comfort, cushioning, and durability.