CoolBELL bases on the cutting-edge of fashion trends. Pursuing the best quality of laptop bag category and devoting to providing the best product and service to customers. We make every effort to achieve the best in every detail of design,color, material, sewing, sales and service. Fits laptop brand like Dell / HP / Toshiba / Lenovo / Acer / Macbook air/ macbook pro/ iPad / iPad pro which ups to 17.3 inches. Suits for College students, businessmen, office staff, teens, students, outdoor gens etc. Brand: CoolBELL Description: Multi-functional Bag Size: Size: 18.8 x 5.1 x 13.7 inches; Fits up to 17.3 inches laptop. Weight: 1.2 kg Color: Black Grey Material: Oxford Nylon cloth; 210D waterproof polyester lining Three carrying styles: Backpack style:Comfortable back strap system, easy and convenient to load on your back. Shoulder bag style: One back pocket for hiding the back straps, A removable Shoulder strap been include, when you use it as a shoulder bag. Messenger bag style: One back pocket for hiding the back straps when you use it as a messenger bag. Feature: This bag can convert to backpack, shoulder bag and briefcase,just you want it to be. So convenient for carrying. Construction: Two main compartments designed for keeping laptop or tablet etc. Accessory compartment with pockets inside for keeping items like power cord, mouse, keys, passport , phones etc. Three Front pocket with zipper design. It is convenient for carrying pens, power bank, phones etc.Safe for your items. Two layers of stronger shockproof padding keeps your laptop from being shocked. A durable luggage belt is convenient for fixing the bag on the trolley of a luggage case. Style: Simple Steady Water Resistance Features: Study Business Leisure Travel