BISON DENIM Extra Large Travel Backpack 15.6 Inch Laptop Backpack with USB Charging Port Waterproof College Backpack for Men Women Water-resistant polyester with nylon lining, rust-resistant hardware.Padded shoulder straps and back padding offer extra back support and comfort,help take pressure off of your shoulders when carrying heavier loads. 18" x 10" x 13" (LxWxH), perfect size for storing your laptop,notebooks,ipad,binder,books,pens,power bank,charger,umbrella,oversize water bottle and daily packing clothes for long vacations. With 20+ multi-functional organizer,1*padded shockproof sleeve for 15.6 inch laptops,14 Inch and 13.3 Inch Macbook pro Laptop.1*padded Ipad sleeve.Front pockets built in credit card slots and key hook.Side mesh pockets for quick access essentials for water bottle and umbrella. The backpack comes with a wire at the inside that is long enough to reach anywhere in the pocket and can connect to your portable charger and connect your phone via USB port.The slots on shoulder straps design for storing transport card and grab it quickly without digging in the backpack Backside luggage strap allows backpack to slide over the luggage handle tube for easy transport for travelling. Perfect for business trips or weekend getaways