Waterproof Servus Neoprene III Advance knee boot boasts V-Wave sole to squeegeeaway from under foot. Disperses fluids through open channel outsole frame for maximum slip-resistance. Breath-O-Prene cushioned footbed provides support and absorbs moisture away from foot. Allows air to circulate for a cooling effect. Expandable gusset top opening accommodates tucking in of pants and offers better fit for workers with highly developed calf muscles. Boot resists chemicals, biohazards, and water. Available in mens sizes 3 to 15.