The STIHL Helmet Set FUNCTION Basic is an entry-level 3-in-1 personal protective equipment (PPE) set designed for safe operation of chainsaws, brushcutters, and power tools. Featuring a lightweight ventilated HDPE hard hat, a 6-point internal suspension harness, a protective nylon mesh visor, and integrated SNR 27 hearing protection ear muffs, it provides complete head, face, and noise insulation for outdoor work.