Partstock(TM) Ice Traction Universal Slip-on Stretch fit Snow Ice Spikes. Material: Eco-Friendly TPE (Thermoplastic Elastomer) and High Quality Steel special non-slip studs. Best Selling Ice Traction Cleats. Reduces slip and fall potential. Perfect For Winter Sports + Walking & Hiking On Grass & Snow. Size Small(US: 1-3, EUR: 32-35). Medium(US: 5-7, EUR: 37-40).Size Large(US: 7.5-9.5, EUR 41-43).Size X-Large(US:10-12, EUR:44-46). Strong Performs Under-40-C. Easy To Get On And Off lightweight Folds To Fit In Your Pocket.