An easy-access built-in pocket keeps protectors of all sizes without unnecessary bulk. ArmourGrip technology activated by sweat on the forefoot and back of the heel helps prevent slipping in cleats. Medium cushioning over the entire foot for comfort and protection. The Locked-In Fit construction keeps the sock securely on the heel. Mesh panels on the instep and calf for greater breathability. The material wicks away sweat and dries quickly. The anti-odor technology reduces odor in the sock. Built-in arch support helps reduce foot fatigue. A customized heel wraps your foot for a better fit.