Based on reviews, I expected the shirt would be very tight. I am between a size M and L in button-down shirts because I have broad shoulders and I'm 36DD.Some reviews say you have to size up 2 sizes but that is not true. The large was perfect for me. It did not gap at the chest at all and was a bit loose in the waist. I ended up purchasing 8 similar black button-down shirts on Amazon, choosing a large in each one because every shirt review said the actual shirt size was way too small. This is the only shirt where a large fit me, in all the others the large was too big.This is NOT a button down shirt, as there is no button on collar. It needs a little ironing after washing but is a nice shirt and fit well.This button down long sleeve for women did not disappoint for work. It looks very professional.I loved the shirt, but would have liked a little bit looser fit at the waist.Im tall, so its hard to find shirts to fit my long arms but, this one is amazingI like my arm long .fit at waist.I use it for work. It is perfect.Me agrada el material y color !quality, correct sizing