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FEATURES of the Smartwool PhD Outdoor Light Crew New 4Degree elite fit system uses two elastics for greater stretch and recovery to keep the sock in place Patented ReliaWool technology in high impact areas provides the longer lasting protection to keep feet comfortable Strategically placed mesh ventilation zones provide ventilation for temperature and moisture management Flat knit durable toe seam for high burst strength 2x1 ribbed welt 1x1 ribbed leg 8.5" overall height SPECIFICATIONS of the Smartwool PhD Outdoor Light Crew 68% Merino Wool, 29% Nylon, 3% Elastane Height: Crew Cushioning: Light Half CushionFeature
New 4Degree elite fit system uses two elastics for greater stretch and recovery to keep the sock in place