The CPU (Cranial Protection Unit) is very comfortable and also happens to be good looking. This mid-weight ABS shelled helmet is a durable as they come, has great coverage and offers a high level of protection - for rock, ice, mountaineering and rescue. Internal suspension is foam lined and adjusts easily via camlock and web strap. The CPU comes equipped with elastic headlamp retaining straps which will hold your light securely - for early starts and unplanned night ops... and side vents to allow hot air to escape and cool air to circulate.