Swiftwick Flite XT Zero Tab Sock Swiftwick's FLITE XT® is their most advanced sock yet, perfect for a range of activities demanding stability. It boasts AnkleLock™ Technology for ankle support during repetitive motions. The GripDry™ Fiber in the heel and forefoot, composed of minute nanofibers, clings to your shoes, reducing slippage. This fiber, combined with Swiftwick's moisture-wicking Olefin fiber, keeps you dry and blister-free. With medium cushioning for comfort across various activities and gentle arch compression for sustained support, this sock is versatile and reliable. Product Features AnkleLock™ Technology: Utilizes durable elastic material to envelop your ankle and heel, delivering precise support for safeguarding during agile movements. Arch Band Support: Preserves form, secures sock placement, and gently bolsters the arch for added comfort. Mesh Upper: Enhances ventilation and breathability, ensuring coolness for the feet. Seamless Toe Box: Ensures a snug fit around the toes, eliminating any friction for enhanced comfort. Micro Tab: Shields the heel from contacting the shoe back, offering protection. Y-shaped Heel: Provides a secure fit that moves in harmony with your foot, preventing bunching or slipping. Full Olefin Footbed: Quickly wicks away moisture to guard against abrasions. GripDry™ Fiber: Incorporates Swiftwick's Nanofiber with micro treads for increased surface area, friction, and grip in the heel and forefoot, enhancing stability. Flex Channels: Constructed with Olefin in the forefoot to enhance flexibility and moisture control. 62% Nylon | 21% Olefin | 13% Polyester | 4% Spandex Machine Wash Cold | Tumble Dry Low