Thank you for viewing. I removed the tags intending to wear it, but I only tried it on indoors. There are no size, material, or washing instructions listed, but I think the size is L. I don't remember if it's a coat or a raincoat, but I think it's a water-repellent material. (I bought it intending it to be a raincoat.) The inside is white, and it came with a belt. The back is designed to allow air to pass through (photo 5), and there are also small ventilation holes on both sides (photo 6). In photo 7, there is a faint white line, possibly a scuff or stain, on the back. The length is measured by a layman, so it may not be accurate, but it was 111 cm from the back of the collar to the hem.