When you’re pushing the limits, you need to know your gear is going to protect and serve as intended. Whether you’re at the Ouray Ice Festival, or blitzing for a personal best at the local popsickle, both speed (weight) and safety are crucial, so this is just the helmet you should have in your gear locker! The Grivel Air Tech helmet is ultra-light, ultra-ventilated, and ultra-protective. Fresh air flows through the helmet from the ventilation aperture on the front, speeding up along the aeration channel while absorbing humidity and heat, before exiting at the back. Headlamp clasps make it easy and fast to secure a headlamp. The poly-carbonate shell is co-moulded to a layer of expandable injected foam that absorbs the force of impact. The upper ventilation area is reinforced with metal mesh as protection against penetration of sharp objects. One handed RUN SYSTEM size adjustment is fast and easy to use. Fits head circumference 21.6″ to 23.6″ (55cm- 60cm). Ideal for mountain, ice and rock climbing.