My brother just got his solar charging backpack of brand Infinit, that he ordered for KD50 and gave me to review since he knows how much I like green energy. The idea is simple and smart, backpack has a solar panel and 2200mAH hidden battery and 8 sockets to recharge different devices. It produces 2.4W which is enough say for iPhone, iPad, Samsung Galaxy S, MP3 players, GPS, pocket gaming consoles… etc.
The backpack felt light, I think about 1.5KG and it can fit 15″ laptop, there’s also a dedicated iPod and iPhone sockets. The nylon material seemed of good quality, I find this backpack excellent for road trips, travelling, gym, school or college. The downside here is clearly the price, if you like it you can get it from Amazon or this website