A favorite of through-hikers and day-trippers alike, the PhD® Outdoor Light Mid Crew 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, Smartwool pulled out all the stops: the 4 Degree™ elite fit system provides a dialed-in fit, and their signature Virtually Seamless™ toe offers extraordinary comfort in any trail shoe. Plus, new Shred Shield™ technology helps reduce wear from toes.

• 61% wool/37% nylon/2% elastane
• High-density, lightweight 200-knit construction
• PhD®: Built for Performance in the Highest Degree
• 4 Degree ™ Elite Fit System: Uses two elastics for greater stretch and recovery to keep the sock in place
• Indestructawool™ technology features a patent-pending construction method for exceptional durability and comfort
• Light cushioned sole for added warmth with minimal volume
• Body-mapped mesh ventilation zones
• Virtually Seamless™ toe
• Shred Shield™ technology, Smartwool's newest technology, reinforces the toe cap with minimal cushioning. The result reduces excess friction from the toe and around the toenails and increases durability three times
• 8.5 in. height
• Machine Wash Warm Gentle Cycle. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.
• Made in USA of Imported Yarns