Yaktrax Men's Run Winter Traction Device Grey Medium, Grey, M

Traction cleats designed by runners specifically to fit over running shoes allowing users to continue training in winter Made of combination of replaceable, 3mm carbide-steel spikes and 1.4mm stainless-steel coils to provide unbeatable traction Provides 360 degrees of traction on cold surfaces for all-direction stability Rubber foot frame with formed-toe and over-foot straps secures the runner’s foot in the device; reflective heel and side straps for safety Tested safe from breakage in temperatures as low as -41 degrees F; available in S, M, L, and XL sizes to fit most shoes Sizes: S = UK 5-7, M = UK 7-9, L = UK 9-11, XL = UK 11+