This is a very lightweight and rain-resistant backpack made from UV track sheet scraps.
It will not fade, is durable, and lightweight, so feel free to use it. We had a tote type backpack made from Japanese track sheet fabric made from plastic bottle materials.
The zipper is specially ordered by YKK and is easy to open and close, and the fabric is waterproof so it can be used in the rain. Anyway, it is lightweight and convenient. The gussets allow you to put more stuff in it than you think.
I imagined a bicycle rider having a meeting with a laptop computer.
Size: 40x40cm, bottom gusset 13cm