I've worn it once or twice, but there's no visible dirt to my untrained eye. The size isn't indicated on the clothing, so it's unknown, but I'm listing it as L based on the fit. There are pockets on both sides. Please check the photos for the length and size. This is a used item, so please refrain from purchasing if you are sensitive to such things. Color: Gray系 (Gray-based) Pattern/Design: Solid Season: Spring/Summer