Versatile traction: OmniTrax Interchangeable Sole System for customized traction on the fly; easily change soles as conditions or terrains demand. Waterproof: 100% Waterproof breathable bootie construction combined with waterproof leather keeps feet bone dry. Insulation: 400g of 3M Thinsulate insulation combined with our Thermal Stack Technology for the ultimate warmth during intense adventures like snowshoeing and hiking. Durability: Protected Stitching around the heel for prolonged thread life & reinforced rubber toe cap for added abrasion resistance. Fit: Boa M4 Fit System for fast and effortless on/off and custom fit. KORKERS Women Snowmageddon w/ SnowTrac Sole, Color: Black, Size: 11 (OB9401BK-11.0)