HH® Max-Vent HH® Max-Comfort Insole HH® Max-Grip HH Surround-Grip HH® Quick Dry HH® Pro Guard HH® Power-Stride HH® Free-Flex HH® Arch-Brace HH® Tough-Wear Pebax Powered® 100% Recycled Lace 100% Recycled Lining 100% Recycled Toe box and Heel reinforcement 30% Recycled Rubber 100% Recycled Polyester Strobel Non-marking rubber soles More than 70% of the upper is made of recycled materials Recycled Content PFC-free DWR.Composition:Upper:100% Polyester (Recycled).Upper 2:100% Polyester (Recycled).Upper 3:80% Thermoplastic Polyurethane