Yaxtrax believe that your running habits should not be affected by changing weather conditions which is why they have created these functional running ice grips. They use a combination of removable spikes and steel coils to provide 360 ° of traction across snow and ice, allowing you to continue your training throughout the winter months. They are made using high strength natural rubber and can be worn in temperatures as low as -41 ° Fahrenheit. These grips have been designed specifically to keep you moving during the winter.FeaturesPerformance ice traction running device from YaxtraxCombination of carbide steel spikes and 1.4mm steel coils - provide 360 ° of traction across snow and ice.High strength natural rubber €“ durable, strong and can be worn in temperatures as low as -41 ° Fahrenheit.Removable performance strap €“ enjoy a secure and comfortable fit.Reflective heel tab €“ makes getting them on and off easy.SizesApprox Shoe Size UKApprox. Shoe Size EUFootprint CircumferenceS3.5 - 6.536-4058-64cmM6-939-4364-72cmL9-11.543-4672-76cmXL11.5-1346-4976-82cm