Feature:1. 3pcs set includes 1* Backpack + 1* Middle Shoulder Bag + 1* Small Zipper Pocket.2. Made of anti-scratch nylon and polyester material,durable to use.3. Large capacity features on several pockets,good for storage and organization.4. Main compartment can store your laptop up to 15.6 inches.5. USB port design can connect to a power bank inside the bag.You can timely charge your phone anywhere.6. Adjustable padded mesh shoulder straps distribute weight effectively and reduce strength consumption.7. Suitable for work,business,travel etc.Specification:The 3pcs backpack set is designed to protect your laptop while on the trips.Features:3pcs set includes 1* Backpack + 1* Middle Shoulder Bag + 1* Small Zipper Pocket.Made of anti-scratch nylon and polyester material, to use.Large capacity features on several pockets,good for storage and organization.Main compartment can store your laptop up to 15.6 inches.USB port design can connect to a power bank inside the bag.You can timely charge your phone anywhere.Adjustable padded mesh shoulder straps distribute weight effectively and reduce strength consumption.Suitable for work,business,travel etc.Specification:Color: Black / Red / Blue / Grey (optional)Material: Nylon + PolyesterBackpack: 30*12*46cm / 11.8*4.7*18.1inShoulder bag: 20*5*22cm / 7.9*2.0*8.7inZipper pocket: 15*8cm / 5.9*3.1inTotal weight: approx. 490g / 1.1lbPackage List:1* Backpack1* Shoulder Bag1* Zipper PocketPackage List:1* Backpack1* Shoulder Bag1* Zipper Pocket