This is a universal bag that can be expanded.Suitable for most people, men, women, old and young, suitable for most occasions, such as travel, outdoor activities, sports, work and life.

Description of each part (what you can own) :

Front compartment (27.94 cm X 17.78 cm) : mobile phone, walking, speaker, pen, battery, charger, key, laptop, tablet, wallet, ID, etc

Middle compartment (15 "X 10") : IPAD, tablet, laptop, etc.

Main compartment (20 "X 13") : Fabric, tent, large laptop

The main compartment is equipped with tight rope: whistles, scissors, clips, small bags and other small items

Shoulder strap (15.24 cm X 7.62 cm) : Walkie Talkie

Back compartment (48.26 cm x 35.56 cm) : water bag, clothes, blanket, etc.

Side bag: kettle, umbrella

Other functions of packaging:

* The main compartment can be expanded from 39 liters (2,380 cubic inches) to 64 liters (3,905 cubic inches).

* Heavy duty oversize zippers and tabs

** Multiple 3.0 litre water sacs

* Side parachute buckles can be tightened to provide a compact and convenient transport package