There are plenty of fancy backpacks around these days, many of which can connect to your smartphone. BACKPAIX is another one with app control, side access, a shoe pocket, and a smart badge. This smart backpack holds your things and charges your gadgets (thanks to an optional battery).
The smart badge can be used to signal your turn when you are on your bike or show your mood. You also get an emoji editor for it on your smartphone. BACKPAIX is expected to ship in November.