1. EXPANSION & MULTIPLE COMPARTMENTS- 17.1"L x 6.5''(up to 8.7'') W x 13"H; weight: 2.31 lbs. The expansion zipper makes it more flexible, the laptop briefcase can be transformed as a large duffel bag when necessary. Up to 4 compartments can meet all your needs well. The large tech compartment can fit up to 17-17.3 inch laptop. Two front pockets allow you to put daily necessities in an organized manner.The expandable document compartment can storage your A4 folders, magazines, clothes or umbrella. 2. TSA FRIENDLY & ANTITHEFT- Convenient at checkpoint. A separate tech compartment with large opening design can make you quickly pass at airport security, also keeping your laptop, 12.9'' iPad and other tech gadgets tidy. Its metal anti-theft zippers will enhance the security of the computer bag. 3. COMFY & ORAGANIZER POCKETS- Adjustable and "C" curve padded ergonomic shoulder strap relieves stress of shoulder; padded vegan leather handles light-weight carrying; luggage strap allows laptop office bag to slide over the luggage tube; and lost of organizer pockets aim to ensure a easy business trip or daily commuting. 4. LAPTOP PROTECTION- The dedicated laptop compartment is fully padded with EVA foam. The laptop bag can the optimal protection for your laptop. You don't need to worry about your notebook getting crashed on the travelling.