Size: 14.1-15.4 inches; External dimensions: 38.0x27.0x3.0cm; Internal dimensions: 36.5x25.5x2.5cm1. Large capacity easy storage, powerful storage function, front and back multiple layers of bags, computer accessories orderly storage2. Delicate fluff inside, delicate care fuselage, avoid fuselage wear and scratch, waterproof easy cleaning preferred waterproof fabric, tear resistance and wear resistance3. Travel a good companion bag to pull away, handbag with pull rod design, hands more relaxed4. A pack of package you need, using hierarchical design, can easily store the computer and its accessories, the number of the pack is up to you to decide, let you travel without worry5. The front bag is designed to hide the hand for a long time. According to the principle of the human wrist bearing comfort, it is carefully designed to do not hold the hand