Vital Nation KPS600 Protective Kevlar Hockey Socks INNOVATION: Our revolutionary, next-generation stacking process combines Kevlar with lightweight foam to create a cut-resistant barrier unrivaled in the marketplace DEFENCE: The KPS600 sets the benchmark for increased protection to an athletes calf muscles, lower leg and Achilles tendon #weDEFEND YOUR GAME! DESIGN: The seamless integration of Kevlar and lightweight foam combined with the Vital Nation Shield offers athletes the next-generation of forward-thinking design and style MATERIALS: stretch polyester fabric (shell), 3mm closed cell foam, Kevlar, Nylon thread, Heat activated adhesive SIZING: Junior (24") for shin pads 10"-12", Intermediate (26") for shin pads 13"-14", Senior (30") for shin pads 15"-17"