Cowhide leather hiking boots. Side zip and adjustable laces. Back pull tab for ease. Flexible insoles. Faux shearling interior lining. Rubber lug sole. LEATHER: Made with high quality leather. Any wrinkle or irregularity is a natural characteristic of the leather, which makes each piece unique. STARFIT® TECHNICAL FOAM INSOLE: Flexible technical insole made with polyurethane foam. Comfort, cushioning, and durability.