I ordered this last minute for a work gala. I don’t usually buy dresses in bright colours, but I didn’t want to be one of the many wearing blacks. Chicsew suggested a size large based on other purchases I’ve made, and I decided I would rather it be a little too big than too snug. For reference, I am 5’5”, 150 pounds, and 36DD. This dress is perfect! If you are chesty, you may want to go a size up as I did. This dress is stealing at £50, and I know I will wear it again. Highly recommend!