Husqvarna arborist helmet Spire Vent is designed for the professional arborist who requires convenience and style at work without compromising safety and protection. The Spire Vent helmet is lightweight and well ventilated for maximum comfort. It has a universal fit and a wheel ratchet for easy size adjustment. Also equipped with attachments for mounting headlamps, ear muffs and visors. Compatible with HusqvarnaÕs passive ear muffs or X-COM R with Bluetooth and three Husqvarna visor styles, including clear, mirror and smoke (all sold separately). Fulfils European standard EN 12492 for work at heights.