MATERIAL?:The bullcaptain backpack made of high quality microfiber waterproof leather that is very durable and ages beautifully, creating a backpack that is uniquely your own. Interior also features a fully lined tear-resistant polyester lining to stand up to daily use. PRODUCT SPECIFICATIONS?:Exterior Dimensions :18.1inch X 12.5 inch X 6.2 inch/46cmx32cmx15cm, Weight: 0.82kg /1.8 lbs, fit a 15.6 inch laptop. You can have 3 carrying options (Single shoulder, cross body and hand carry) UNIQUE STRUCTURE?:This genuine leather laptop business backpack is designed with innovative features, multiple interior pockets, and a separate rear laptop compartment that can hold a 15.6 in or14in laptop. Perfect for professionals, travelers, and the fashion-forward. USB HEADPHONE PORT DESIGN ? : Built-in USB PORT is convenient to charge your phone by the connected power bank (POWER BANK is not included). And the headphone jack frees your hands when enjoying audios, music, etc. Carefully Made and practical? :The backpack back is made of the soft breathable grid cushion Breathable and adjustable shoulder straps relieve the stress of shoulders,that makes you feel more comfortable when you using it.In daily use, an ordinary backpack without cushioning can cause discomfort as its contents rub against the back.We take that into account and we want to make this bag more comfortable for you to use. This is why this backpack has a soft, breathable cushion at the back. All-Purpose Backpack? :suitable for business, casual, travel and school. The back of the backpack has a pass-though strap allows backpack fit on luggage/suitcase which may reduce your burden during travel,is best choice for journey and also business style.