The Spyder Peak Ski Socks will get your boy ready to hit the hill in style, without sacrificing comfort. The synthetic construction breathes and insulates, while the elasticized ankle and arch compression helps to elevate the performance by ensuring the sock lays snug against the skin. 63% Acrylic, 36% Nylon and 1% Elastane Fabric - Wraps the foot in softness and strength for a snug and warm fit all winter., Cushioned Heel and Toe Box - Relieves most impacted parts of the foot from pressure while on your feet., Ankle and Arch Compression - Adds an extra layer of durability to protect from swelling and joint extension., Warranty: Lifetime, Material: Synthetic, Type: Ski, Weight: Heavy, Model Year: 2022, Product ID: 584427, Model Number: 198076 001 S, GTIN: 0192636017382