Humanity uses a lot of the precious energy that our planet provides to us every day, but the amount of this energy is reduced every year. At the same time, the sun gives us an incredible quantity of energy but it is not used as much as it could be. BirkSun is a company that invented solar backpacks that are used to charge devices when there is no access to electricity.
The backpacks are waterproof, durable, and lightweight and the solar panels are not easily damaged. They are used for both remote outdoor activities, like hiking, and urban activities, like commuting around your city.