The Balega UltraGlide Friction-Free No-Show Running Socks for Men and Women are ideal for runners who are prone to hot spots—skin irritation that can lead to blisters on the feet. A highly technical sock, the UltraGlide features Balega's proprietary Drynamix poly blend fiber, combined with friction-free nylon yarn, and a textile lubricant that reduces heat and chafing. Seamless construction, and anatomically cut left and right feet eliminate excess fabric and bunching. Targeted cushioning across the top of the foot reduces lace pressure, and the heel and toe is reinforced for comfort and durability. A variable density metatarsal pad provides additional protection and support during long runs. Compressive arch supports and the flat-knit structure hold the sock securely in place, while ventilation panels ensure breathability. The Balega UltraGlide Friction-Free No-Show Running Socks feature medium-low volume cushioning for performance and durability during extended training and endurance events. Balega launched in 2003 and set out to create the world's best performance running sock. Built to perfection, Balega socks are composed of extra fine yarn on high needle count machines and are hand-linked for a fully seamless design. Balega socks are 100 percent hand-inspected for quality assurance.