The best summer foundation has a few key characteristics. It should be long-wearing, oil-free and oil-controlling and, most importantly, look natural without any heavy caking. It is summer after all and you want to look fresh and not heavily made up. Of course, you don’t have to wear foundation. Lightweight BB cream and skin tints are a great alternative. But if you’re someone who really loves the look of full-coverage, you’re not out of luck. There are some stellar options that will stay on no matter how hot the sun gets.