Ergonomics: Adjustable compression straps with soft breathable sponge
The daypack has a main pocket, two front pockets, two side pockets. It is plenty for daily using. The bag can hold book, textbook, binder, iPad, laptop, keys, cosmetics, clothes and so on
The bag with USB charging port (no including power bank) The back pack has a chest strap, it can fix the backpack to prevent shaking,and the chest strap can disperse load from back that will lighten load on your back and make you very comfortable
Excellent capacity, bookbag dimension: 11.81" x 5.12" x 17.32" (Length x Thickness x Height)
Heavy duty backpack for men women: high quality material, all connections are sewed with thick stranded thread that makes backpack durable.