Experience durability at its peak with the PhD Outdoor Light Crew. Featuring Indestructawool technology, a patent-pending wool-based durability construction, these socks are ready for any adventure on your list. Plus, with redesigned mesh zones, a Virtually Seamless toe and the 4 Degree elite fit system, these socks have comfort covered.

• 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.
• 56% Merino, 41% Nylon, 3% Elastaine

M = 6 - 8.5 US Mens = 7 - 9.5 US Womens = 38 - 41 EUR = 5 - 7.5 UK

L = 9 - 11.5 US Mens = 10 - 12.5 US Womens = 42 - 42 EUR = 8 - 10.5 UK