Helmets are largely made of plastics, but the good news is that most of the plastics used are probably safe. There may be concerns about the plastic in polycarbonate shells, but they are not in contact with your skin while you ride. We think that the benefits of helmet protection far outweigh any risk from the materials.

If you’re on a tight budget, a thermoplastic (polycarbonate) shelled helmet is fine. There are some really safe and reasonably light ones about. Check out AGV first. Some expensive helmets are poor.