Fit notes: Please buy size based only on your bust/bra, under bust and across combined. If you are in between sizes, match it as closely to the under bust. Sizing down will give you a tight corset look, sizing up will give you a looser look. This dress is based on BUST ONLY, like a bra. It is essentially a bando. The arms are roomy and there is no waist. Please do not order without taking the time to check it against your current bra size, or for a guaranteed fit- measure! If you are in between sizes, size down. (to get into it, zip the dress while around your waist then pull over your chest.) Please use steam on your Selkie dresses, it will bring out the best fit!