Swiftwick Aspire Zero Sock yak COMFORT - With its unique

COMFORT - With its unique scale structure

Not ideal for tight footwear like cleats

A multi-density ball designed to replicate the feeling of a massage therapist's hand

Nike Flex fabric stretches with your body

Swiftwick Aspire Zero Sock yak COMFORT - With its uniqueThe ASPIRE Line of socks from Swiftwick is thin and light for serious runners and cyclists, yet still perfect for athletes of any sport. Swiftwick's most popular running sock, the ASPIRE ZERO no show has firm compression for contoured support. The ZERO no show sock sits below the ankle with minimal extension above your shoe. High Olefin content fabric wicks moisture away and won't bunch, keeping you happy and blister free.