It is made of polyester, so it is strong and can fit a lot of things. Even though it has dimensions of 28x40x14 cm, it is very usable for all your planned trips. It has one main pocket and a poison smaller pocket. In the upper part there is a nylon loop. The shoulder straps are padded and can be freely adjusted. The entire back of the backpack is also padded, so it is very comfortable on the back and will be a pleasure to wear.