In reply to Stuart the postie:
> Rab Xenon also looks similar, not sure about hood though?
I have a xenon from a couple of years ago. The helmet is a tight fit, the zip is one way and there are no inner mesh pockets. It's also very delicate too, brushing the rock can cut it. It's great for summer but not winter in my opinion.
Unless you carry a bothy bag or survival blanket, a warm belay jacket is a sensible backup for issues on the hill.