I debated on this purchase for a while. I needed a lightweight jacket with easy on/off depending on room temp and current activity (I'm a nurse). I love this, and I don't regret buying! I'm 5'0" and 115 pounds for reference. Petite build. I ordered the regular size Small, as the small petite was sol...d out. The fit is great. The sleeves are a bit long, but that's expected, as my arms are not that long. Feels great fully zipped or unzipped. Powersoft material is fabulous - I own several pairs of the Powersoft joggers, so I knew I'd like the feel of the jacket. It's very similar to more expensive brands' versions. I think I actually like the Old Navy version better. The length isn't quite as long as a "define" jacket. Not CROPPED, but not too long. Falls right at my hips. Very fitted - so I am glad I chose the small rather than the XS (petite) size tops I normally buy from Old Navy. An XS would have fit just fine, but I personally like a little more room. A medium would've also worked. LOTS of stretch! This is perfect for something light to just throw on/off as needed.