Snake Chapz are manufactured with 1000 Denier Cordura Nylon encasing polycarbonate inserts, snake proof to a minimum of 19" high. Weighing only 15 ounces each they are impact tested by the United States Testing Laboratory at ASTM test method F-1342-91 specifications. The material has 1 ounce of urethane waterproofing applied to the inside surface. A YKK metal zipper on the inside of each chap provides "easy on - easy off" over heavy boots or shoes. Snake Chapz are secured in place with a 1" polyester strap, which may either be slipped through a belt loop or over the belt prior to connecting the polycarbonate quick release buckle. This provides "full range" height adjustment - a unique feature with Snake Chapz