Wrap-Around Calf Protection, 1000 Denier, Water Resistant, Orange, Length 33” from Waist. Professional chain sawyers wear ProChaps™ because they protect their legs like no other, thanks to layers of Prolar™ inside. Prolar’s unique fiber composition “explodes” when a chain makes contact — stopping and jamming a chain saw in seconds. ProChaps™ deliver reliable protection without sacrificing comfort and flexibility.