Description STIHLâs Forestry Helmet System protection starts with a hard shell of ABS thermoplastic. A six-point, ratchet-style suspension system that absorbs shock and keeps the helmet stable while you work. The Forestry Helmet System also features a Cool Guard sweatband to keep perspiration out of your eyes, as well as a built-in rain gutter to direct rain away from your face during inclement weather. Adjustable hearing protectors comfortably reduce noise while an epoxy-coated steel full-face screen helps protect from flying debris.