Meet the Sun Strap: a versatile solar charger that lets you charge your USB devices like smartphones and cameras on the go. It fits around any bag strap and charges your gadgets with its built-in 5600 mAh battery. You get a micro USB plug at the bottom to charge your Sun Strap. Sun Strap weighs only 5.8oz, so it does not make your bag too heavy.
Sun Strap fits any bag strap and becomes a part of your bag. It is compatible with iPad mini, iPhone 5, Samsung Galaxy, GoPro, and other comparable gadgets. You can get it on Kickstarter.