Hi guys, I commute daily in traffic and was wondering if investing in a back protector was worthy? Are they more designed for people on the track? Furthermore, any recommendations for protectors? A quick google and I can see some are "CE" standardised. Is there an aussie standard? Which one do you have, and has it ever saved you from being a vegetable? Also I want one for snowboarding, so any recommendations would be great. THanks.