Features Specially designed for working at height Y-style 4-point chin strap Size adjustable headband via wheel ratchet system Inner expanded polystyrene foam Hi-Visibility colour for visibility in daylight Light and robust Compatible with PS58 helmet visor holder Up to 7 years lifetime from manufacturing date (as long as undamaged) Compatible with PW47 and PS47 clip-on ear muff CE certified UKCA marked DescriptionHeight Endurance Mountaineer helmet is the ultimate evolution of our Height Endurance range. This vented, peak-less helmet is designed for multi-purposes. It is ideal for working at height, rescue operations and climbing activities. Thanks to its inner EPS foam, this style is fully certified to the EN 12492 standard. Its comfortable sweatband and wheel ratchet adjustment ensure optimal fit. Wide range of accessories available.