This is a lightly padded, "shaka shaka" (windbreaker-like) trainer from Pearly Gates. It's reversible, with orange and purple sides. The sleeves are detachable with zippers, so it can also be used as a vest. It blocks the wind, so it's great for layering on slightly cold winter rounds!! The size isn't indicated on the tag, but I think it's a size 1. There are no noticeable stains according to a casual inspection, but please understand that this is a used item.