I'm a 36 DDD and I purchased a medium. It fits me really well. I could have went up a size so the top comes down a little but I'm perfect fine with the way it sits on me. Highly recommend you wearing it with high waist jeans for skirt. Covers well so it doesn't show side boobs.

Love the shirt. The color is nice, the material is more like a linen material so it gets wrinkled but it’s very nice