Have you ever been certain you’re one size in clothing, only to find yourself in the fitting room later with four pairs of jeans in the same size, and they all seem to fit differently? You’d probably expect a size 12 is the same in every shop, but if you’ve ever shopped around to update your wardrobe, you’ll probably know by now, that’s not the case. So why do sizes vary so much? And is there a standard guide shops and brands should be following? Newstalk Reporter Emily Keegan has been looking into it, and brings us this report.