At 5’4” 149 lbs, I originally purchased this as a size medium. It was a little snug and not loose or off the shoulder like the photo. The seller gave me the option to return or keep and receive partial credit. I reread the size chart for this item and ordered a size large. Fits perfectly like the image. The fabric is breathable. Looking forward to wearing this on my flight with a jean jacket. You can really dress it up or down. I will be donating the medium to a friend! The only thing I would comment on is

Love this jumpsuit! So far, I’ve ordered two in different colors because I love it so much. Very comfortable and easy to dress up or down! Definitely recommend.

This jumpsuit is super cute and comfy. I'm 5'8 155lbs and I bought a large. It fits perfectly. It can be dressed up or down depending on shoes and accessories. I plan on ordering more of these in different colors.