Compact solar power chargers for your devices are not new, however, the most advanced models are just vaguely the same as the first chargers available on the market. Yolk Solar Paper, the world’s slimmest and lightest solar charger ever made, offers you lightweight solar power in a pocket-sized bundle. Solar Paper is severely lightweight, it’s just 3.5 by 7.5 inches in proportions, and 0.15 inches thick. On a sunny day, it can easily recharge your iPhone in 2.5 hours, just like if it were connected to a wall plug. The charger includes an integrated display for tracking to see how much power the unit is producing in the moment. The solar panels can be included together by way of magnets for additional charging power, and they are also waterproof.