Fabric type: 100% Synthetic/Leather/Mesh Care instructions: Machine Wash Sole material: Vibram GORE-TEX waterproof membrane, exceptional breathability and waterproof performance Synthetic leather and mesh upper Bellows, closed-cell foam tongue keeps moisture and debris out Molded nylon arch shank Vibram TC5+ sole Experience out-of-the-box comfort in this gore-tex hiker. With durable leathers, a supportive footbed, and Vibram traction, all in a versatile package,you won't doubt why moab stands for mother-of-all-boots.