The poc helmets are meant to get destroyed if you hit your head, its some technology all the bigger companies use to absorb more shock I think its called triple impact or something like that. Get the receptor bug flow. designed to be ridden in snow and while biking or skateboarding. really sweet good ventilation. I wouldnt consider any other for both. I trust poc helmets more than any others.
http://www.pocsports.com/en/product/1221/receptor-flow