Designed by Angel Collinson, the PhD Pro Freeski sock will perform like a pro, giving you top-notch comfort and fit. The contoured shin and ankle cushioning give you support where you need it but won't restrict movement. The 4 degree elite fit system dials the fit and the indestructawool technology enhances the durability so the PhD Pro Freeski sock will be your go to all season long. Over-the-Calf, Light Elite Cushion, 57% Merino Wool, 40% Nylon, 3% Elastane, 13in. Overall Height, 4 Degree Elite Fit System - Dialed, Performance Oriented Fit, Indestructawool Technology - Enhanced Durability, Wider Welt - Secure Fit and Comfort, Contoured Shin and Ankle Cushioning - Added Support and Comfort, Flat Knit Toe Box - Added Comfort, Women's Specific Fit - Narrower Heel and Slimmer Fit, Warranty: Two Year, Material: Wool/Synthetic Blend, Type: Ski, Weight: Light, Model Year: 2022, Product ID: 619492, Model Number: SW001440001-S, GTIN: 0193394688678