If you're prone to blisters or hot spots on your feet, the brand-new Balega UltraGlide sock was designed for you! Made with friction-free yarn and proprietary Drynamix yarn, UltraGlide socks feature variable density cushion pads that create protective pockets for your trouble spots like your metatarsal arch, toes, and heel. Balega hand-linked toe closure reduces irritation. Compressive arch bands keep the socks in place. Left/right construction for the perfect fit. Ventilation panels ensure air circulation.