I purchased these at USJ about 4 years ago. I used them inside USJ after buying them, but I haven't used them much since, so I'm putting them up for sale. The red one has a few brown stains on the zipper, and it feels like it catches a little when opening and closing. The green one has no stains, but the gusset has a slight crease. I would appreciate it if you could understand the above points, and I would like to request that you purchase them as a set of two.