I ordered based on the size chart. I’m a 38DD/40D. Lots of times I have issues with jackets either fitting too snug on my chest or too tight on my arms. The sleeves are really long and wide, they can hide my hands completely lol. I’d say it’s safe to size down for a more fitted look. If oversized is what you’re going for then order as normal, plenty of space to layer underneath without it being snug. I give it 4 stars just because of the sizing. Overall, very cute jacket and the quality is very nice. Can’t wait to wear it out!