climb/hiking shoes Upper: PU Lining: cotton mesh Insock: Fabric Outsole: Rubber Products' Features and Specifications:climb/hiking shoes1. Material: upper---quality,cold-resistant, abrasion-resistant and eco-friendly PU/synthetic leather front lining---breathable, absorbent, deodorant, soft and comfortable foam and eva slices. back lining---breathable, comfortable mesh or soft pu. internal of ...