It is a very convenient backpack, water resistant nylon material, lightweight and foldable, easy to pack as a small package. Large capacity 40L, reflective strip on front, to keep safety while at night. Two mesh side pockets, ok to put umbrella or water bottle. Lifesaving whistle could help to ask for help once meet dangerous or accident.
This collapsible backpack use water resistant nylon material, after foldable, it also can be a shoulder bag, to save the space and easy to take away. Very light, only 0.3kg. Large with 30L capacity. 7 colors options.