Composite safety toe knee boot with removable contour cushion insoles absorb moisture and shock,and provide outstanding comfort. Cleated nitrile rubber outsole provides superior grip on dry, wet, and contaminated surfaces. Superior chemical resistance to fats, oils, hydrocarbons, certain acids and caustics. Composite safety toe does not transfer cold or set off metal detectors. Durable, seamless upper is 100% liquidproof. Tiny air bubbles in the material keep feet warm in cold and cool in heat. Calf-Relief Topline™ (CRT) for easier on and off and roomier calf space. Beveled heel for reduced back and leg strain.