I've been using this since the Swaddle Up Original M became too tight. There are some fold wrinkles, but I haven't used it that much, so it's in good condition with no noticeable stains. The breathable fabric allows you to take your hands out, so it was useful in the summer. The zipper can also be opened from the bottom, making diaper changes easy. #swaddle #swaddleup #babywrap