Cheers mate, think I'll give them a blast. Don't fancy another trip to hospital !Only in the very hot days last week mate , besides that I always have them around my neck stepping out of van in morning, as soon as mixing anything inside or out put them on until materials are on , tbh i will whip them off every now and then but as said before I tried nearly all types of eye protection and find these the best , ventilation at the top and the bottom