User Review: Petzl Ecrin Roc
Price Paid: $58-85
I use this helmet for caving, as does my daughter. Major advantages include the easily adjusted straps and headband, the clips for holding a headlamp on the helmet, and the air vents.
Disadvantages--none that I know of, except that a headlamp can be pulled out of the clips by a passing rock while crawling. I have not used this helmet for rock climbing.