Knitted fabric with ultra-fast-drying ArmourDry technology keeps feet light, dry and cool. Double-sided adhesive with ArmourGrip technology in the forefoot to prevent slipping in socks and shoes. ArmourDry technology helps disperse moisture and allows sweat to evaporate quickly. Dynamic and responsive arch support reduces foot fatigue. Mesh ventilation zones on the instep ensure breathability. Maximum cushioning in the toe, forefoot and heel for more protection where you need it most. 360° ankle padding for a secure fit in the shoe. A conformed heel hugs your foot for a better fit. Specific cut and design for left/right side. One pair.