Delivering ultimate safety and fit, this arborist helmet features integrated hearing and face protection with a low-profile design that prevents snagging on branches. The Protos protects against both vertical and horizontal impacts, and the neck protector guards the back of the head from impact. Adjustable ventilation channels may be closed or opened depending on the conditions. Open the vents to allow cooling air to flow in from all sides and escape through the ventilation gate. All components of the helmet (hearing protection, face shield, helmet adjustment, and vents) can be adjusted with just two fingers. KlimaAIR® padding wicks away perspiration, and a rail attached to the chin strap prevents the strap from slipping. Certified according to EN 397, EN 12492, EN 1077, and EN 1078. Hearing protection provides noise reduction of SNR=26 dB.