Ladies, omg this jacket is so stunning! When I opened the package I actually gasped at it's beauty! It it so soft and luxurious looking. The sleeves are nice and long, so that when you raise your arms, they're not exposed like so many jackets do to me. I am 5'6", just under 150lbs, bra size 38 DD and usually a size 10 and I got a medium. It fits well, I may have wanted to go to a large just in case I wear a larger sweatshirt underneath, but I feel like the next size up would have been too big, if that makes sense, so I'm keeping the medium. The inside of the jacket is that satin like material, so it doesn't have much give, which I believe is helpful information when deciding your size. For those reviews talking about the "buttons", honestly, once you get the hang of how they work, it's actually super easy! You can't see them well, but you can find them with your fingers super easy, in my opinion. I hope someone will find this information helpful! Get it while it's on sale!!!!