Apparel
Smartwool
PhD Outdoor Mountaineer Sock
Over-the-calf sock from 50% Merino wool, 43% nylon, and 7% elastane with 20-30 mmHg graduated compression. Light Elite cushioning at heel and toe with flat-knit leg for low-volume mountaineering boots. Indestructawool technology reinforces high-abrasion zones. 4 Degree Elite Fit System prevents slipping.
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Connection note
Co-designed with SmartWool; graduated compression for alpine climbing
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Log in to submitLast updated March 22, 2026