I thought I could tailor this to what I wanted (lightweight, short, short sleeve) for summertime in our hot pharmacy but it's too big and fitted. 5'6" 160lb and a large fits when buttoned but I usually wear unbuttoned so I could've used a med I think. Will return this.This is a nice jacket*well made*princess seams so more tailored not boxy*good pockets including chest pocket*made in Haiti*not very see-thru but can see what color shirt you have on under it.I will prob end up with Dickies EDS #84401 in a MED which is lighter weight (may be too thin for some), and tailor the sleeves. EDS has darts not princess so less fitted but good pockets. It's the light cover with pockets that I'm looking for.Good luck!I love the fit. I don’t give it 5 stars because the material is too thick for me. I get too hot when I wear it.I’m 5’4.5, ~165 pounds with a 34D bust, 29 inch waist and 41 inch hips.I purchased a size medium and it fits perfectly.The picture is me wearing it over a fall/autumn sweater.Fits true to sizeS size fits too tight when I'm wearing my sweater. (I usually wear 6 to 8 size) It would be better to order M size.I am very pleased with style and quality. Totally recommend it. It is true to size. I am 5' 3" and 175 pounds and large size is perfect!Great fit at a reasonable price. Would recommend to others.Love the Lab Coat!!