Anatomical Molding System™ with CoolMax® polyester conforms to your feet for increased blood and air circulation. Individual anatomical toe sleeves form a thin anti-blister membrane between toes to eliminate skin-against-skin friction. 3-ply flex construction prevents sock movement while increasing wicking and circulation. The precisely stitched Vector Heel prevents bunching and allows for a comfortable fit. Double-layered welt top maintains shape for long lasting performance and support. Ideal for marathons and long-distance running. CoolMax® wicks moisture, dries quickly and breathes well, allowing you to enjoy the benefits of cool, dry feet. Content: 70% CoolMax polyester/25% nylon/5% Lycra spandex |