This is a long-sleeved Madras check shirt purchased from a Ralph Lauren shop. The size is XS, but I think it's equivalent to a Japanese size S or size 7. (Photos 5 and 6) Spare buttons are also included. (Photo 7) Worn about 3 times in one season and stored at home. There is no noticeable damage, so I think you can still wear it. Made of 100% linen, it's light and airy, so how about using it for air conditioning対策 (cooling measures)? It will be shipped via Mercari delivery. Instant purchase is OK.