PU rain boots PU snow boots PU outsole & upper Lining material:artificial wool cool design; warm-keeping Men's Gum BootMaterial:PU (Poly urethane)Function:cold protection, anti-squashy,puncture proof, oil proof, anti-acid, anti-alkaline, anti-slip, anti-abrasion, anti-smellyUsed in: cold storage, snow field, outdoors , mining, architecture, chemical, food, pharmacy, hospital, etc.Euro size: 7-12 ...