A favorite of through-hikers and day-trippers alike, the PhD® Outdoor Light packs some serious trail power. Featuring a versatile, multi-sport design, this lightweight style includes Indestructawool technology for ultimate durability in high wear areas. And when it comes to comfort, we pulled out all the stops: the 4 Degree® elite fit system provides a dialed fit and our signature Virtually Seamless toe offers extraordinary comfort in any trail shoe. The Mid Crew height sits at an ideal height for a low trail boot.
Indestructawool utilizes a proprietary yarn and construction method which strategically places Merino and reinforcement fibers where they are needed most. The result is the most durable and comfortable wool sock ever made.
4 Degree elite fit system uses two elastics for greater stretch and recovery to keep the sock in place
Ventilation designed for end use: more mesh in Ultra Light and Light weights ensures maximum breathability, thermoregulation, and moisture management.
57% Merino, 40% Nylon, 3% Elastaine
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
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