Waterproof leather film material + Premium Oxford | Zipper closure | √Large Capacity Business Laptop Backpack: size A: 11.8*5.9*18.5 inch, weight: 3 lb; size B: 11.8*5.9*18.5 inch, weight: 3 lb; size C: 11.8*5.5*18.9 inch, weight: 3 lb; It fits 15.6" laptop, can be used as business, daily, outdoor, travel, overnight backpack. Meet your everyday needs. | √USB Charging Port: With Built in USB Charger Outside, This Business Smart Backpack Offers You A Convenient Way To Charge Your Devices While Doing Some Other Things. The Backpack Can A Be Great Tech Gift For Your Closest People. (POWER BANK IS NOT INCLUDED.) | √Anti-Theft Travel Backpack: Features an anti-theft pocket to protect your passport, wallet, mobile phone and other valuables. The rear luggage straps can be attached to the handles of a trolley or suitcase for easy carrying. | √Comfortable & Breathable: Breathable sponge layer on the back and shoulder strap reduce the pressure effectively. The polyester lining is durable and soft, both preventing the fabric from fraying and protecting your computer from scratches. And together they protect your computer from accidents and drops. Adjustable buckle waist strap keep the backpack fixed on your body. Comfortable and decompression, not tired! | √Multifunctional Business Backpack: Made of Waterproof and scratch-resistant leather film material + Premium Oxford, waterproof and durable. It is a multifunctional men's backpack for business/work/school/travel/camping/riding. Also a perfect gift for family and friends! This Ensures A Secure And Long-lasting Usage.