Design: Waterproof upper ensures that feet stay dry and warm Toggle closure for easy on/off and adjustability In-Shoe Comfort: Warming insulation at the upper lining, toe and footbed keeps your kiddo's feet cozy in temperatures down to -25F Soft recycled PET linings for added comfort Durability & Traction: Non-marking outsole with extra grip for superior traction Additional Details: Anti-stink lining helps reduce odors 200g insulation on toe and upper lining 400g insulation on footbed