The ultra lightweight, low-cut running sock that balances comfort and protection with a barely there feel. Fresh feet for longer runs. Perfect for warm days and running races, the Ultralight Low Sock will keep your feet fresh run after run. Light as a feather, it combines anti-blister patches and a moisture-wicking structure to create a sock that keeps you comfortable, protected and ready to run. Premium Versatility. A premium blend of cotton, modal and elastane provides soft comfort, gentle protection and moisture control. Soft and flexible but adaptable and resilient, it has a natural cooling effect that makes it perfect for before, during and after any workout. A sock that hugs your feet, a sock that feels like a second skin. With a snug and supportive toe box and an ultrafine gauge yarn, this sock is all about that feeling of running sockless yet supported. This sock is all about performance.