These are so very comfy, and are great quality. 100% cotton, but I did not find that they shrank at all. I wear them fairly frequently (at least once a week) for about six months, machine wash 'em with the rest of my clothes, and truth be told I ought to be wearing a size up now (since I've gained some weight), but the seams appear to be quite sturdy, haha! The fabric is just fantastic, the elastic is nice and stretchy, and the lace is still pretty. Did I mention that they BREATHE? A miracle!
For the price, they can't be beat, and I've yet to find another pair of similarly-simple pantalettes of a 100% cotton or linen material. My one wish is that they could be a bit longer, but I *am* tall-ish.