Dunlop's JobGUARD wellington provides heavy duty protection for every job. Manufactured from Acifort, Dunlop's unique invention of PVC, nitrile rubber and polymers. - Nitrile rubber ensures a longer lifetime and better resistance.- SRC rated outsole designed for maximum grip on the toughest terrains- Fit perfected with Dunlop's innovative Snug-fit that eliminates heel slippage and foot fatigue- Dunlop's Acifort provides extra chemical protection from fuel and acids