Ultralight Crew socks are constructed with ultrafine hi-tech performance yarns and feature a protection-based design to create the sheerest, lightest performance crew running sock. Engineered with proprietary Drynamix moisture management technology, the socks will keep your feet cool and dry, while allowing free airflow for maximum comfort, performance, and durability. The hand crafted, high performance Ultalight Crew socks are lightweight and thinner than most other running socks to provide a true minimalist feel. Race-tested and incorporating a hand-linked seamless toe to eliminate abrasion across the top of the foot, these socks provide the ultimate comfort without adding bulk to your shoe. An extra deep heel pocket ensures the sock fits your foot perfectly.