A couple years ago I while exporing a new line I took a 25 foot fall while wearing a Ecrin Roc. On the way down my foot hit the side of the rock breaking two toes and flipping me over so that I landed on my head on a sloping ledge below and then pendulum another 15 feet. Compared to everthing else I hit, landing on my head felt like falling into a pillow. I felt the helmet deforming around my head absorbing the shock and I'm sure saving my neck. If you've ever been knocked out wearing one of the old style metal hardhats you know the thing that hurts the worse the next day is your neck. I never did feel soarness in my neck. I've replaced this helmet with another Ecrin Roc.