Swiftwick Flite XT Ankle Socks - Black, Medium 12"-20" Wheels 28mm internal (33mm external) rims

28mm internal (33mm external) rims made of 6061 T-10 heat treated alloy is incredibly durable

- Preload collar for adjusting tension on bottom bracket bearings

Manufacturer Part Number: CP5101U10OS

Immediate unstoppable reactivity directed along a steel axle and lightweight cranks in unidirectiional carbon fiber

sleek and comfortable

Swiftwick Flite XT Ankle Socks - Black, Medium 12"-20" Wheels 28mm internal (33mm external) rimsThe Flite XT is the a technologically advanced sock, providing all around stability. It offers moisture wicking fibers, blister free performance, and medium compression for lasting arch support at any cuff height. AnkleLock Technology featuring targeted ankle and heel support provides protection during quick movement Proprietary GripDry fiber in the heel and forefoot grips shoes to keep feet stable 59% Nylon 23% Olefin 16% Polyester 2% Spandex Machine