100% waterproof. Upper part of the wader made of very resistant PVC/polyester (0.88mm) treated to prevent stiffness and cracking when under cold temperatures. 100% waterproof heat welded seams. Boot part made of PVC / nitrile. Stabilizing arch. Self-cleaning outsole helps prevent slips and falls and is abrasion resistant. Kick-off lug for easy removal. Resistant to disinfectants, fertilizers, solvents, various chemicals, mineral, animal, fish and plant oils and fats, to seawater and to effects of sunlight.. Reinforced knees. Adjustable high quality heavy duty H-shaped elastic suspenders. Inside pocket at the chest. Generous sizing for appropriate adjustment and the comfort of the user.