May-li Cuypers wrote a review of Petzl Elios Helmet on August 10, 2006
Just used the helmet on a 4 day canyoneering trip in Zion. It worked great. I have a small head, and I am prone to migraine headache, so I need something not too loose and not too tight. Elios worked great. Nice and comfy fit, I forgot I was wearing it. Nice protection all around, nice drainage after the canyon pools and easy to adjust on the flight.