This is a sweat jersey made of a fabric called "cardboard knit," which is popular among bus enthusiasts. It's a thick jersey made of cardboard knit, so I think it's suitable for spring, autumn, and winter. It's a size L set-up, both top and bottom. It hasn't been worn much, so I don't think there are any noticeable stains. The cuffs are clean as shown in the photos. The fabric surface shows some signs of wear, but it's in good condition for a used item. The logo on the back was peeling off significantly, so I had it repaired by the manufacturer, and it hasn't been worn since. The logo on the pants has some raised areas.