Originally Posted by banerjek

I'm due to buy a new helmet. In typical Fredly fashion, I've been wearing an Alchera for awhile. Most of the year, it's fine, but there are definitely issues with overheating in hot weather or when exertion is sufficiently high -- a couple times, I wound up lying in a ditch passed out from heat exhaustion.

How much benefit would I get from upgrading to something like an Atmos, Volt, or something better (i.e. is it worth it to spend the extra $$)?