Run Traction Size:X-Large One end engages the 8

One end engages the 8 internal splines of the crank arm adjustment cap

Chevron v-channel design for your palm swell to give an ergonomic feel

Barrier WxB fabric provides optimal wind and water protection

multi-tooth grip for maximal traction on steep inclines

durable bike the biggest bang for your buck

Run Traction Size:X-Large One end engages the 8Yaktrax Run Traction: The Yaktrax Run is the only traction device anatomically designed to meet the needs of runners braving the winter elements. Run naturally on packed snow and ice with the Yaktrax Run's combination of removable spikes and steel coils, providing 360 of unbeatable traction. Continue your training during the winter with the same stability you are accustomed to on dry surfaces. The Yaktrax Run can be worn in temperatures as low as 41