FEATURES of the Adidas Women's Terrex Fast R GTX Shoe Lining: Gore-Tex extended comfort footwear Inlay: Molded Ortholite sockliner Midsole: Full forefoot adiprene for forefoot propulsion and efficiency Midsole: Outdoor specific Formotion unit for enhanced motion control and downhill comfort Outsole: Traxion-featuring Continental rubber for extraordinary grip SPECIFICATIONS of the Adidas Women's Terrex Fast R GTX Shoe Weight: 12 oz / 345 gram Textile/Synthetic