I'm looking for used G3. Not impact rated. You should be definitely upgrading to a G4 for your safety. Think of getting 30% off your new G4 by trading in your G3 to me! (I'm going to likely want about 6 of these to fit different sized heads for a school that's not for skydiving). I figure it's a good way to put your G3 to good use (for someone who almost could use a bike helmet, but needs the face shield and chin guard) and get a 30% discount! (or if anyone knows a school that will be upgrading and getting rid of a pile of full-face helmets, please let me know).