Proven Alpha Thermal in a warm rubber boot for women facing cold and nasty jobs Naturally insulating and waterproof 7 mm uppers Tough, handcrafted rubber overlays with added layers over the toe, heel, and vamp Full fleece linings Active Fit design - athletic fit, glove-like feel Removable PU footbeds Thick EVA midsoles - cushion, added insulation Nylon shanks Antarctic outsoles - multi-dimensional lug pattern for cold weather traction Comfort rated -40Á to 30ÁF Only worn a few times, excellent traction in snow and ice. These will keep your feet warm!