OXA Canvas Backpack School Bag Laptop Bag Computer Bag Daypack Black Main material: This backpack is made of 95% high density cotton canvas and 5% genuine leather zips. Structure: A total of 10 pockets. 1 main zipper Pocket, 1 front zipped pocket, 2 sides pockets, 1 large Laptop compartment pocket, 1 inner zipper Pocket, 2 open inner pocket and 2 Pen loops. Approx Dimensions: 11.5" L x 17.5" H x 6" W Capacity: 25L ( Middle capacity, it can holds most 15 inch laptop.) Warranty: All of our bags have 1-YEAR WARRANTY. Any quality problems with your bag, please contact us, we will solve it. OXA: It's such an awesome backpack that you will receive many compliments from your family and friends.