These are nice cotton envelope style pillowcases. They look great on my fluffy queen size down feather pillows. They go on easy and they are a soft cotton and very comfortable to sleep on. The envelope fits great on the pillows and really does give them a nicer look and keeps the pillows in their cases.They are cotton so they are not completely wrinkle free but the wrinkles that are present are a part of the "washed" look and do not make the pillows look bad. They go well with my bedding and so far I love them.They have held up well to washing and I wash them in hot water (I wash all bedding in hot water except my waterproof mattress cover) and dry them on medium heat. The haven't shrunk either. These are perfect and reasonably priced cotton pillowcases. I have already bought a second set in another color and will be buying more. I love the color selection.I definitely recommend these pillow cases if you're in need of some good pillowcases. I hope this review was helpful.