Wearable Solar
I sometimes ridicule product concepts for which I can’t think of a single use, and wearable solar tries the imagination.
OK, suppose you’re alone, out on a long hike, and you get lost. You’re making so many calls out of desperation for help that your cell battery is depleting. Could happen.
That seems like a cool shirt for a hike or vacation! It always sucks when you’re lost and your phone is about to die.