The Stihl Advance X-Vent Helmet System is a Class C hard hat that provides protective features for forestry and tree service professionals. It has a large, etched stainless steel mesh face shield that allows for excellent light transition. The helmet system also has a six-point ratchet suspension that is easily adjustable for a comfortable, secure fit. The helmet shell has vents for cooling and reflective material to help locate a wearer in low light. The helmet system also includes NRR 25 hearing protection and weighs 1.8 pounds