Backpack:Material: Polyester and 290 twill cloth, durable and wear-resistant.Net Weight: 22.93 oz.Dimensions: 13.4"(L) x 5.9"(W) x 15"(H), can install a 13-14 inch laptop, the guard against theftStructure: 1 large main pocket, back zipper, large opening for easy access, 2 small side pockets can hold small items.Capacity: can hold your laptop, book, phone, umbrella, wallet, magazines and so on.Usage: You can use this backpack purse as a tote bag, shoulder purse, and backpack to carry your day to day essentials, multipurpose design easy conversion handbag backpack purse and shoulder.