PVC overshoes have thicker and deeper cleats for better grip and longer wear. Injection molded workbrutes PVC overshoe has 46% more material in its outsole than the nearest slush molded competitor. Frigiflex® PVC compound contains special additives for high stretch and flexibility in cold temperatures. Tingley Workbrutes® Work Overshoes, Hi-Top Classic Fit Waterproof, Series: 35111, Unisex, Fits Shoe Size: SZ 11 to 13 Men's, Plain Toe, Black, 5 in Height, Cleated Sole, Pull-On Closure, PVC Upper & Midsole Material, PVC Outsole, PVC Shank, Resists: Chemical, Fat, Certain Acid, Hydrocarbon, Caustic and Cold Temperature