Product Review

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.

PhD
Built for Performance in the Highest Degree

4 Degree Elite Fit System
provides greater stretch and recovery to keep the sock in place

Indestructawool
Indestructawool technology features a patent-pending construction method for exceptional durability and comfort

Mesh Venting
Mesh zones designed for high-output activities or warmer tempuratures provide ventilation.

Light Cushion
The ideal cushion for varied trail and road terrain

Care
Machine Wash Warm Gentle Cycle. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.