For heavyweight protection that won't weigh you down, choose Pro Mark™ apron chaps, 9 Layer from Stihl. They're rugged, yet comfortable to wear and easily fit over your work clothes. Sewn into the legs of the chaps are nine layers of Avertic® Pro by Engtex®, a cut-retardant material designed to reduce the risk or severity of injury to the body parts covered by the pads in the event of contact with the rotating saw chain of a gasoline powered chainsaw. The open back design of these chaps makes them a great choice for hot working conditions. These Pro Mark™ apron chaps provide three additional layers of Avertic® Pro by Engtex® cut-retardant material than our standard apron chaps. Stihl® chainsaw protective apparel is also wash and wear, unlike some other brands that require dry cleaning or light surface cleaning. These chaps feature a reflective waistband for better visibility, a zipper cargo pocket for easy storage and an abrasive knee for bending and kneeling. The Stihl® Pro Mark™ protective apparel is finest paired with professional Stihl® units. This line of personal protective apparel is designed for professional users, helping protect against injuries they may face during frequent use.