All sunglasses are technically portable; you tend to have them with you anytime you go outside, after all. However, not all sunglasses are necessarily designed with portability in mind.
But Foster Grant® Compact Sunglasses are designed that way. They offer all the same sun protection and style as other Foster Grant sunglasses. Then, they fold up flat to minimize the amount of space they take up in your bag or slide discreetly into the pocket of your skinny jeans.