I am 5'3", weigh 158lbs and a size 8/10 (more on the 10 side). I wasn't sure what size to order so I purchased both the L and XL. XL was definitely too big. Large fits great! Granted it's on the first set of clasps and still a little snug, but it's holding in the precious muffin top and will continue to fit as I (hopefully) lose weight. I purchased this to wear under a dress for a wedding, but have been wearing it to get used to the feel and it makes me feel and look more slimmer. I recommend it for the price! I purchased the black lace and will probably purchase another one to wear under lighter shades of clothing.