I purchased this here and used it a few times, but I'm selling it because I don't think I'll be using it anymore. There's some wear and tear, but no noticeable stains or marks. Inside, there's a mesh pocket. The shoulder strap is adjustable. Approximate size: 23 x 23 cm, gusset about 3 cm. The shoulder strap has some slight fuzzing. It will be compressed and shipped in simple packaging.