Additional Details:

Chest Straps — It is adjustable (move up and down) and detachable, and can clip on to avoid the shoulder straps falling off or bear some strength from the shoulders strap.
Side Straps — to make the backpack tighten when you backpack is too baggy or it needs to be adjusted into the suitable size to fit into the aircraft luggage compartment.
Side Mesh Pocket — it is a perfect place to fit water bottle and the opening is elastic that can fix your bottle well.
Headphone Cable Hole — it has been cut and you can cross the cable thru to connect your phone/MP3.

There are three main separate compartments, the following details for your reference:

1.The outermost compartment: 29 cm x 37 cm , 11 inches x 15 inches (L x H)
It has a detachable key chain and there are many assorted pockets,including 3 card pockets, 2 pen pockets, 1 zipped mesh pocket, 2 wall pockets and 1 big pocket. Overall, this
outermost compartment could be a main pocket fitting papers or binders.

2.The middle large compartment: 15 cm x 30 cm x 44 cm , 5 inches x 12 inches x 17 inches (L x W x H)
It contains 1 main big compartment , 1 separate compartment and 1 padded phone pocket (10 cm x 17 cm, 4 inches x 7 inches) hanging beneath the headphone cable hole.

3.The Rear large compartment : 36 cm x 6 cm x 46 cm, 14 inches x 2 inches x 18 inches (L x W x H)
It contains 1 large compartment and 1 fully padded laptop compartment with protective airbag.It can fit most 17″ and all 15.6″ laptops

Package Includes
1 x Laptop Backpack

Product Features

• Shockproof Protective Airbag Technology is applied to the padded laptop compartment that can well protect laptops/notebooks/computer/ iPad/Tablet from scratches and bumps.There is a velcro tap to fix laptop well.
• Ergonomic Design: (1)Padded shoulder straps are comfortable to carry, adjusted by Metal Connectors which are sturdy and durable; (2) Padded Wide Grasp Top Handle is easy to carry around; (3) Padded Back Panel covered by mesh, with air-flow passage enhances the ventilation and make it breathable and comfortable.
• Water Resistant Polyester Fabric + Waterproof Rain cover can avoid your inner objects getting wet in this light rain or sudden rain.The rain cover is hidden at the bottom and pull it out for an emergency use when needed.
• Roomy Space with assorted pockets organize / storage objects well.The pockets’ construction is improved deeper to contain more gadgets at the most front Compartment. There is a headphone hole that you can cross the headphone cable when you enjoy music or have a phone call,at the same time your device is secured inside the backpack.
• The Drawbar sleeve can attach onto the luggage pull- along handle when you are on business or go traveling.This 17 inches laptop backpack can suitably fit under airplane seat. So It owns a pretty unisex appearance that suits men and women and can works as business backpack, computer bag, traveling bag, school/college rucksack.