Cowhide leather boot with side elastic goring. Zip closure. Front and back pull tabs for ease. Flexible insoles. Rubber soles. LEATHER: This product is made with a unique material. 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.