A solar powered backpack

This summer I subscribed to soniastravels she has some great ideas on how to pack, what to see and where to stay. Today I was surprised when she talked about a solar powered backpack.The backpack appears at 1:22 in this video. And here is a link to the manufacturer: Birksun

https://www.youtube.com/watch?v=E1gbUcSGGSM&list=UUqZ2HZqow7l35qrhH-DBo4w

http://birksun.com/1:22