The PhD® Ski Light helps keep your feet warm and dry even on the longest days. We placed cushioning where skiers need it most: on the shin to banish shin bang and on the bottom of the foot for warmth and impact protection. Patent-pending Indestructawool technology provides ultimate durability to make sure your socks are ready to go, run after run. Made with our 4Degree® elite fit system for a sock that doesn’t bunch, slip, or bind.

• Indestructawool technology features a patent-pending construction method for exceptional durability and comfort 
• 4 Degree elite fit system provides greater stretch and recovery to keep the sock in place 
• Mesh ventilation zones designed specifically for male skiers increase breathability
• 56% Merino, 42% Nylon, 2% Elastane

Sizes US Men US Women Euro UK

Small 3 - 5.5 4 - 6.5 34 - 37 2 - 4.5

Medium 6 - 8.5 7 - 9.5 38 - 41 5 - 7.5

Large 9 - 11.5 10 - 12.5 42 - 45 8 - 10.5

X Large 12 - 14.5 n/a 46 - 49 11 - 13.5