How many times have you had to return garments that you have bought and change the order to get a different size? The problem is there is no standardisation in sizing. High Street brands target specific sizes and age ranges therefore you will find lots of difference in fit and sizes when you try on garments. For women in particular this can be an issue, a ladies size 12 in a shop like Oasis (which targets younger customer) is totally different to a size 12 in Wallis (which targets an older more mature shape customer).