Bridgedale's lowest and lightest sock the Men's X-Hale Cool Lo Sock uses a unique sling shot grip of Lycra® to lock in the heel and prevent slip. With a lightweight no show height multi-sport impact protection is targeted at the heel ball of the foot and toe box for optimum cushion. During sport and casual pursuits in warm conditions maximum ventilation is achieved through sculpted knitting around the foot and in key instep regions. Merino Wool and Endurofil™ fibers are designed into a blended yarn that moves moisture away from the foot for lasting dry comfort. The ultra-low cut Bridgedale X-Hale Cool Lo Sock for men is perfectly designed for summer hiking adventure racing or indoor training.