designer's own words:This backpack looks like it is similar to other backpacks but travellers can solve the accommodation problem by using this backpack. A tent frame is attached to this backpack and a single tent is stored in this backpack. When you want to sleep during your trip, you can take out a single tent from this backpack. Setting up the tent is very easy. Firstly, you need to hook up the tent to the frame and when you pull the tent behind and fix it on the ground, it become your single tent.