SAN Francisco Backpack 15.6’’The SAN Francisco Backpack is an elegant and connected backpack. It has a built-in USB port to charge your devices anywhere. you just have to plug your external battery inside. This bag contains padded compartments for your computer and tablet. as well as a large space to store all your belongings. A secret back pocket will allow you to hide and keep your passport or your smartphone for example safe. A trolley strap will allow you to attach your backpack to your trolley arm. An adjustable chest strap will ensure that the bag stays in place optimally. The outer material of the bag is waterproof. you can safely carry your personal belongings in the rain.