deuter SPEED LITE 13 Speed Lite 13 Backpack (Model Number: D3410022) Bag Founded in 1898, this German brand is known as a manufacturer of mountaineering backpacks. It achieves high breathability thanks to its unique "Aircomfort System," a back system that creates space between the back and the pack. They also make environmentally friendly products, such as using recycled materials. They offer products for various uses, not only for mountaineering but also for cycling and kids. (Quote) I have not had the opportunity to use this after purchase, and it has been stored at home unopened. I opened it for inspection and to list it for sale. I am selling it to organize my backpacks. I plan to ship it via either Yu-Yu or Rakuraku Mercari delivery, packed to fit in an 80-size box. I may lightly fold it depending on the packaging, so please be aware of this.