Round sunglasses are back and riding high on the trend for everything 90s. A vacation essential, this shape is made with circular lenses and a rimless, metal or acetate frame for that classic Kurt Cobain style. Coming in a range of low-key tones from gray to beige and vibrant colors from red to yellow, there's a pair for every occasion. Choose a pair with UV protection for your next trip and keep a tinted pair for your city looks.