After reading a lot of the reviews it seems that people don't realize that this is not a sweat shirt jacket, it is a very thin t shirt like jacket. A  thin light jacket to wear during the summer or when it is not that cold. A cover up type jacket. It states it is a jersey jacket. Also people feel that it is very loose. It is not that loose, not for me, it is snug in the chest and tummy not that long either or loose in the front around the waist.  I'm 5'2 and about 138 with a 38d chest and it's tight for me, I read all of the reviews stating it's loose fitting etc so I ordered a med, and will not dry it, as it is 100 percent cotton and will shrink. A large would have been better.. depends on what each person prefers on the fit. Fits just fine as received but prefer a bit more room. It is a perfect lil cover up during certain times of the year, warm enough for lil cold and not too hot, like a sweatshirt jacket. It's about 73 degrees in r house right not and is perfect.