100% waterproof Nylon / 100% Nylon imperméable

and the Big D™ End Cap helps to reduce vibration so young hitters can swing with confidence

High-level resistance for strengthening

Model is 5'11"

The perfect mid-point between low and crew length socks

Pro-Tec Athletics "Slider Discs" Exercise Aids fitness 100% waterproof Nylon / 100%Cardio and strengthening exercises for complete body workout Great cross training; activating muscles of arms, shoulders, back, glutes, core, upper and lower legs Customized foot straps keep feet securely in place Slides smoothly on carpet and hardwood floor (use disc cover) Includes 2 slider discs, 2 disc covers and 1 exercise program