Quality insulated pac ozone-resistant rubber, ribbed vamp. Soft, pliable polymeric foam insulation plus an extra thick insulated midsole assures warmth and comfort in the coldest weather. Heavy-duty nylon net lining for maximum wear; non-skid design chevron outsole with full boot heel. Steel shank for firm support. OD color; yellow top bind. Full sizes only. LaCrosse Burly Pac Rubber Knee Boot