Key features

• •Reasonable Multi-compartment Design -- 3 x compartments with more than 10 various pockets are well constructed at actual demands,that has enough room to organize your daily items more easily and conveniently,such as Clothes,Books,Phone,Laptop,Umbrella,Water Bottle...Built-in laptop sleeve and tablet PC padded with thick foams and hook&loop fixed strap to help reduce the damage of dropping, bumping and shocking.
• •Ergonomic Design of "S" Shape Shoulder Straps & Airflow Back -- Fits human's back completely to feel the ultimate comfort,alleviate the fatigue and reduce moisture and stink of your back effectively. Both shoulder straps and back compartment are padded with soft breathable mesh foams.
• •Back Belt for Easy-Transport -- A special belt is designed on back to be fixed firmly over trolley suitcase on your travel.
• •Additional Features -- 1) USB 2.0 Charging Port extended out the right side; 2) Anti-theft pocket for valuables on back; 3) 2 x zippered pockets with elastic strap for umbrella,water bottle etc.4) Made of ultralight durable nylon and water resistant anti-tear lining.
• •Sizes -- Exterior:48x40x18CM/18.9x15.7x7.1Inch,Laptop Sleeve:43x32CM/16.9x12.6Inch, fits most up to 17.3 inch Laptop / Notebook / Ultrabook / MacBook of most brands,may not snugly fit all computers due to variations in the sizes of different models.