Geoffrey N.wrote a review of Petzl Ecrin Roc Climbing Helmet on September 23, 2003
Just got back from climbing Thunderbolt mountain and the helmet was great. A very comfortable helmet that is very easy to adjust with the two adjustment wheels. When tempuratures dropped near the summit, the helmet easily adjusted to fit over my hat. Wore it for 14 straight hours and never thought about it -in fact I forgot to take it off when we got back to base camp. Good ventilation too. I would like to add a lightweight brim around the perimeter for sun protection.