Foldable sunglasses are like having a dose of cool in your pocket. The portable frames are convenient, stylish and most importantly, durable. Usually made with scratch-resistant lenses and durable acetate frames, sturdier models like the Persol 714 are built to last. But we're also seeing glasses with a bit more pop than your usual black or tortoiseshell offerings (see: Burberry's "Brights" collection). We rounded up the season's best timeless and trendy frames, no matter your budget.
