This karrimor knapsack is made with lightweight and breathable mesh material. It's about 50cm long. I've used it a few times, but have kept it stored at home since. There are no noticeable stains. - Brand: karrimor - Color: Gray/Olive - Material: Mesh/Nylon - Design: Backpack style Thank you for looking. If you have any questions, please feel free to ask in the comments＾＾ #karrimor