Stihl 0000 884 0175 Construction Hard Hat SystemCombining first class durability and all day comfort, the STIHL Construction Hard Hat System gives your projects a proper foundation in protection. The system starts with a hard hat made from tough ABS thermoplastic. A six point ratchet style suspension system improves comfort, as well as shock absorption. The system also features a Cool Guard sweat band and rain gutters, keeping both perspiration away from your eyes and precipitation away from your