Designed for the runner looking to keep blisters at bay, the Balega Blister Resist Quarter Sock Grey/Blue uses natural mohair fiber to reduce friction while running, and in turn, provide protection from blisters. Mesh panels on top of the foot add ventilation to keep feet cool, while a wide arch band offers enhanced support and comfort. As an added benefit, the mohair fiber naturally defends against unwanted odor, and it improves durability so you can get maximum usage for miles of running.