Prevail Helmet problem - date of manufacter

I bought a Specialized Prevail yesterday from a well known cycle shop. It had a seciruty tag on it and the guys in the shop said at the time that this was unusual (the helmet came from the warehouse stock not the shop floor). When i got it home it was dirty and i had to clean it and remove a number of blemishes from the helmet all of which cleaned up ok. I have just taken another look at the lid and it says manufactered in Nov 2010. Do you think i have an old helmet or is it normal for helmets to have been manufactered over a year ago and still be on sale?
0
Posts
It's definitely got a few years of life left, so stop worrying and get out and ride.
2 months later I received a letter from Royal Mail saying the sender was reporting the item undelivered and claiming for the item, I filled in the form saying item received, returned and full refund received. Not sure what the shop were trying to do by claiming from RM.