I was concerned about arm length and quality.  I am so very happy with my purchase.  My bust it 38 at the fullest but I wear a Med/lg in juniors and usually a small in womens.  I got the medium and they are just perfect.  They are 100% cotton and I was also worried about that after some of the reviews.  So very glad I ignored those reviews.  This is not a heavy weight jacket nor does it say that it is.  I got the black and the white for cool mornings that turn to warm days and I am very pleased.  They are not boxy on me, fit my chest and monkey like arms and seem like they are made very well.  I could not be more pleased with the value and quality.  Thanks so much!