Swiftwick Aspire Four Socks f21closeout over-molded case

over-molded case

The women's F1 shares the men's 102 mm lower shell and fit through the foot

adjustable

Weight: 335 g

DIN certified bindings offer the most predictable release and best overall power transmission in a binding system

Swiftwick Aspire Four Socks f21closeout over-molded caseThe top of the line and most Popular Cycling sock from Swiftwick, the Aspire Four. Designed and engineered to fit as a hybrid compression sock, with a thinner profile and snug fit around the heel and toe box. The Aspire Four will help reduce any fatigue that you may feel late in the day on a long ride, whether on the trails or on the road.