Stihl Dynamic Ergo Helmet – Newly designed helmet set for landscaping and gardening use. This lightweight helmet only weighs 750g, making it a comfortable helmet to wear all day. Very good hearing protection (SNR 28). Large nylon visor for good visibility. Headband with ratchet style knob for easy adjustment. Vents in the upper part of the helmet shell allow for optimum airflow and cooling during work. Complies with EN 352, EN 397, EN 1731.