Mark Ryden Business Backpack for Men and Women, Expandable Travel Backpack, Waterproof Travel 25L-40L fit 17 Inch Laptop Backpack with USB Charging Port, Carry on Flight Approved Computer Backpack

【Large Capacity and Expandable】 17.7*11.8*6.3 inches（normal），17.7*11.8*10.2 inches（Extended）.This UPGRADE Trip Backpack Carry On Flight Approved with Side Water Bottle Pockets.Open the expansion zipper, the packaging space can be increased from 25L to 40L.Main bag can easily hold 7 days of Trip equipment. This laptop backpack for women and men has a thickened furry independent laptop compartment to better protect your expensive 17 inches laptop from scratches.
【YKK Zipper & USB Charging Port】 MS business smart backpack With YKK durable metal zipper opens and closes smoothly to make sure protected and long-lasting use.Built-in USB charger and a built-in charging cable so that you can charge anytime and anywhere. (Apart from power bank), only a convenient charging method.Free up your hands so you’ll be able to use your electronic devices whilst walking and riding.
【Waterproof & Anti-theft】This water resistant business backpack is made of high-quality waterproof and durable polyester fabric, it provides more protection for your items in rainy days.The anti-theft pocket hidden on the back can protect your wallet, bank card,ID card, passport and other valuables.
【Multiple Applications】 The stylish women and men Trip backpacks is suitable for business trips, short vacations, weekend getaway,outdoor camping, daily leisure outings, mountain hiking, fitness exercises, also can be utilized as the best Christmas gift or New Year gift to your friends and family.
【Convenient and Thoughtful Design】The buckle design on the chest of this Trip backpack relieves the pressure on the shoulders. Two padded handles on the top and sides allow the computer backpack to be lifted from multiple angles.There is a mini lifeguard whistle at the buckle and you’ll be able to use it to send out a distress signal when you are facing a dangerous situation.