I would look for a real helmet if I cared. I have been passed by runners while tooling along a 10 mph so I don't wear a helmet and feel perfectly safe. I have a bell helmet with a hard and heavy shell. If I had to buy a real helmet for bike riding I would go for a light climbing helmet rather than the jokes they sell to cyclists these days. Some people like to hit very high speeds on decents and some kind of protection makes sense for that. Also a reason for double front brakes.