Backpack size: (black 1): 15.74 x 13.77 x 7.08 inches//40 x 35 x 18 centimeters. (Black 2): 16.92 x 11.81 x 7.87 inches//43 x 30 x 20 centimeters. The laptop backpack schoolbag can accommodate 15.6-inch laptops, giving people a super elegant and updated feeling. Material: Fashion backpack, suitable for both men and women. It is made of PU leather. Waterproof and wear-resistant, the stitching is neat and tight, and the zipper is also very smooth. The leather bag is equipped with thick padding and an adjustable backpack, which can relax the shoulders. This backpack is very suitable for daily use. Usage: Laptop backpack is an ideal university backpack with a large capacity design and adjustable shoulder straps, suitable for your laptop, books, clothes, snacks, wallet, pencil case, wallet, textbooks, etc. This is a fashionable travel backpack, school backpack, weekend backpack, or hiking backpack. Occasion: The backpack can be used as a large casual daily bag for weekend travel, as well as a cool backpack for business work, school, night travel, and shopping. Can be used as a birthday, Valentine's Day, Christmas, Teacher's Day, Father's Day, Thanksgiving, graduation gift, back to school gift. This is also the perfect gift for you, your loved ones, and your friends. Quality assurance: If there are any quality issues with your leather bag, including damage during use, you can contact us at any time. We will contact you within 24 hours and resolve the issue as soon as possible. Wishing you a pleasant shopping experience!!!