Multi-Function Leisure Backpack With USB Charge Port

Features:
Multi-layer storage space backpack, convenient to store and take things.
Oxford cloth and dacron material, waterproof, wear-resisting and anti-cutting.
External USB charge port free your hands and enjoy the travel.
2 pocket large capacity, make the travle so easy.
Adjustable shoulder strap reduce shoulder pressure.
Pearl breathable pressure-reducing pad keep body dry and comfortable.
SBS zipper, stable and durable and non-skid.
Multi-function such as bus pass package and shrinkable side package help you live better.
Detachable fixed button, can use with suitcase.