The expiration date is about a year, but it's in relatively good condition, without any noticeable scratches, so I think it's clean! During storage, it has become creased as shown in the third photo. There may be some oversights. Also, there may be some dirt or scratches that are difficult to see in the photos, but please understand this before purchasing. I am also selling other swimming-related items. I can offer a small discount for bulk purchases! If you have any questions, feel free to comment! Instant purchase is also OK!