Product details:

The Sorel Yoot Pac Nylon offers the warmth, durability, and comfort of a winter pac boot in a low-profile design. Seam-sealed waterproof construction Removable 9mm washable, recycled felt Inner Boot with Sherpa Pile snow cuff 2.5mm bonded felt frost plug Handcrafted waterproof vulcanized rubber with herringbone pattern Sorel rated: -40 F.