*Winner of the \'Best in Show\' Award from the 2015 Outdoor Retailer conference, this Smartwool® PhD Outdoor Mountaineer sock is designed to combat the harshest weather for alpine climbing
*Sold as a one-pair pack.
*Crew-cut style sits at the calf.
*Self-adjusting welt cuff.
*Ribbed cuff.
*4 Degree Elite Fit System uses two elastics for improved stretch and recovery.
*ReliaWool™ technology is strategically placed in high impact areas for optimal support.
*Flat knot foot and leg with heavy duty yarns provide optimal comfort and protection in low volume mountain boots.
*Heavy cushion in the feel and toe offers significant impact absorption for long days.
*Aggressive mesh vents keep feet cool and dry.
*Flat knit durable toe seam.
*70% wool, 28% nylon, 2% elastane
*Machine wash cold. Line dry.
*Made in the U.S.A.