I wore this once last Halloween and then washed it. The tail has not been washed. Size is M (see photos 3-6). The tail attaches with safety pins. I didn't find any noticeable stains, but this is a casual inspection, so there may be oversights. Please consider purchasing this item, understanding that it is a used item. No price reduction is possible. #DragonBall #Goku #Halloween #Cosplay