In US sizing, I wear size 12 jeans and a size 16 top because I am large in the bust. I ordered a swimsuit from Rosewe in size XL. The swimsuit bra is an A cup. I'm a DD, so trying it on is a joke. The swimsuit bottom is advertised and shown in the photo as boy shorts, but what I received is cut so high in the hips and rear that it's more like a thong. The size chart on the Rosewe site is totally inaccurate. I'd say the sixe XL is about a size 4/6 (XS) in US sizing, and it is made for a girl who has no bust and no derriere. What the models are wearing in the photos is NOT what you will get. It takes a month for your order to arrive and there is no return label. You have to fill out a help desk ticket for instructions to return it. The cost of sending it back will be almost as much as the swimsuit, so don't bother. I'm really angry that the size chart is a total lie. I think rosewe.com cut and pasted a size chart from an American retailer. I wonder if any of their swimsuits have a bra bigger than an A cup. Maybe the size 4XXXX has a B cup.