I purchased this about three years ago and used it about three times back then. After that, it was stored indoors. The most noticeable damage is a peeled section of the urethane on the back. See photos 6 and 7. There is also a dent where the storage band was. Please understand that there are other minor scratches as this is an outdoor item. Everything in the photos is included. Main body, storage bag, storage band Size: Approximately 55cm x 183cm Thickness: Approximately 18mm Storage size: Approximately 13 x 12 x 55cm Weight: Approximately 381g The following is quoted from the website: - An aluminum film is vapor-deposited on the surface, preventing heat from escaping from the body and increasing heat retention. To maximize warmth, use with the silver side up. - In addition to being used as a sleeping mat, it can also be used as a cushion when you're out for leisure, placed on hard ground. It's also okay to use it under a sleeping bag on rough ground with stones or roots. We recommend keeping one on hand at home for unexpected guests or in case of a disaster. - The Z-shaped design allows for compact storage by overlapping them perfectly without gaps. It can also be sandwiched in a backpack, making it very convenient to carry. - The surface is designed with distinctive hexagonal irregularities, arranged in a high density to maintain durability and heat retention, while also reducing bottoming out from the ground, making for a comfortable sleep.