Korkers Polar Vortex 600 Winter Boots with the SnowTrac Sole are warm and extremely comfortable for snow hikes. The construction of the bootie is waterproof and breathable, and when combined with the waterproof leather, it ensures that your feet are kept completely bone dry. The Korkers winter boots also feature 600g of 3M Thinsulate insulation, which is highly rated for extreme winter cold and will keep your feet warm and comfortable. Korkers Polar Vortex 600 Boots are engineered for extreme winter performance with a temperature rating down to -40 degrees Fahrenheit!The BOA M4 Fit lacing system is clever, making it incredibly easy to put on and remove the boot while ensuring it fits snugly and comfortably. If you're wondering about durability, the molded TPU toe cap withstands abuse and then dishes it out for whatever you're kicking and stomping. Backed by Korkers' Rock Solid Guarantee. For a versatile winter boot that excels in deep snow and icy slush, Korkers Polar Vortex 600 Winter Boots are an excellent all-around winter option!Customized traction on the fly; easily change soles (sold separately) as conditions or terrain demand100% Waterproof, breathable bootie construction combined with waterproof leather keeps feet bone dry600g of 3M Thinsulate insulation, highly rated for extreme winter coldMolded TPU toe cap for durability and protection with recessed stitching for added abrasion resistanceBoa M4 Fit System for fast and effortless on/off and custom fitPremium shock-absorbing polyurethane footbedComfort rated down to -40 degrees FahrenheitSpecs: 11" height / 3lbs 15oz per pairManufacturer's one-year warranty