cotton (linen look) overall/jumpsuit. Rinse a little large. I'm 5'4 and 130 and is just a little too small for me. so cute tho, get compliments every.single.time. the buttons are adjustable but they could use an extra stitch. feel like they sag a little over time (has happened to my other 2 as well) but still function fine. either way a great piece! only worn 3 or 4 times but priced to reflect that :)