Ultralight Crew - Grey Heather/Royal Blue Book A softer GEL™ unit is

A softer GEL™ unit is positioned under the heel to improve cushioning while the FLYTEFOAM™ midsole material helps create

feel natural

Running dynamics off your wrist

Removable polyurethane footbeds

Ultralight Crew - Grey Heather/Royal Blue Book A softer GEL™ unit isUltralight 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