This Backpack has multiple compartments to give you a well organized storage of your personal items.Multi-function and large capacity, Suitable for office ,business, trip, collegeBuilt with strong and durable zippers,S-shaped ergonomic design of shoulder strap and scientific reasonable weight-bearing Function. Material: Canvas Internal Material: PolyesterOpen Way: Zipper Gender: Unisex Style: Leisure, Business, Fashion Features: Comfortable, Convenient, Environmentally Friendly Application: School, Business, Travel.Capacity: It can comfortably take an 15.6" Laptop and  other personal effects.WASHING - This Backpack is not washing machine proof, however since the whole backpack is made from water repellent material the backpack is already better protected against dirt and stains attaching to the fabric. And it is easily washable with a wet cloth or wipe.Please note that power bank is not included. You need to get a power bank to power your device. Slide to images to get full specifications.This Backpack has multiple compartments to give you a well organized storage of your personal items.Multi-function and large capacity, Suitable for office ,business, trip, collegeBuilt with strong and durable zippers,S-shaped ergonomic design of shoulder strap and scientific reasonable weight-bearing Function. Material: Canvas Internal Material: PolyesterOpen Way: Zipper Gender: Unisex Style: Leisure, Business, Fashion Features: Comfortable, Convenient, Environmentally Friendly Application: School, Business, Travel.Capacity: It can comfortably take an 15.6" Laptop and  other personal effects.WASHING - This Backpack is not washing machine proof, however since the whole backpack is made from water repellent material the backpack is already better protected against dirt and stains attaching to the fabric. And it is easily washable with a wet cloth or wipe.Please note that power bank is not included. You need to get a power bank to power your device. Slide to images to get full specifications.This Backpack has multiple compartments to give you a well organized storage of your personal items.Multi-function and large capacity, Suitable for office ,business, trip, collegeBuilt with strong and durable zippers,S-shaped ergonomic design of shoulder strap and scientific reasonable weight-bearing Function. Material: Canvas Internal Material: PolyesterOpen Way: Zipper Gender: Unisex Style: Leisure, Business, Fashion Features: Comfortable, Convenient, Environmentally Friendly Application: School, Business, Travel.Capacity: It can comfortably take an 15.6" Laptop and  other personal effects.WASHING - This Backpack is not washing machine proof, however since the whole backpack is made from water repellent material the backpack is already better protected against dirt and stains attaching to the fabric. And it is easily washable with a wet cloth or wipe.Please note that power bank is not included. You need to get a power bank to power your device. Slide to images to get full specifications.