Adidas Terrex Skychaser GTX Shoe - Men's Synthetic Imported Lug Sole sole Shaft measures approximately Low-Top" from arch Upper: Speed lacing construction for fast and snug lacing Lining: Gore-Tex extended comfort footwear Midsole: Pro-moderator-thin TPU film on the heel for extra stability Boost offers endless energy in the mountains and high adaptability on rocky surfaces Outsole: Continental rubber for extraordinary grip