Swiss Peak Eclipse Solar Backpack
It will support a 15.6” laptop, This backpack comes with 3rd generation highly sensitive and enhanced solar panel from #1 solar brand SunPower.
The solar panel power is 14W and can charge an iPhone in 3-4 hours. Perfect for charging your phone, camera or powerbank on the go.
The solar has 2 USB outputs for example charging 2 phones. It also carries 1 extra side usb port suitable for connecting any powerbank.
The solar uses no battery, the sunlight will be transferred directly into energy. You can easily remove the solar panel from the backpack to use it won its own as a power source.
You can buy one from here.