I have some 'capital bond' vouchers which, locally, I can only spend in halfords if I want to use for bike gear. Was thinking of getting a new helmet, as my old old Met one is a little uncomfortable, and I haven't clue whether it complies to any current safety ratings. On investigation, most folk recommend a helmet with a Snell rating. But that doesn't seem to cover brands such as Giro (which my local halfords stock). I don't want to waste my vouchers and not improve the safety of my helmet, but surely brands such as Giro are made to a required standard of some sorts even if they not Snell accredited?