Shockproof & Durable: The front hardshell is waterproof, scratch-resistant, and resistant to crushing. The Oxford cloth lining is durable and soft, protecting your computer from scratches Soft Padded Backrest: The soft padded backrest and shoulder straps can reduce the stuffiness when carrying the backpack for a long time Large Capacity: It can organize your laptop (within 17.3 inches), for iPad, cell phone, headphone, mouse, water bottle, book, etc Worry-Free Travel: With a fixed luggage strap at the backside, convenient to keep it stable on your luggage case, and easy to carry when boarding USB Port: With a USB port outside, providing a more convenient way to charge your phone while walking (need to connect with your power bank) Secure Lock: Equipped with a 3-digit lock to prevent theft and safeguard all your valuables securely (initial code: 0-0-0) Suitable Scenes: Great for travel, shopping, holiday, work, leisure use, etc Specification: Material: ABS hardshell + Oxford cloth Size: 46*31*9cm Computer compartment size: 43*30*3cm For iPad compartment size: 28*16cm Weight: 1.45kg Capacity: 12.5L