Surely many remember those photos in which Kurt Cobain, singer and leader of Nirvana, looked dressed like a scarecrow and covered his eyes with huge oval white glasses. That was in 1993; So much ago, yes. But everything returns.
The Kurt Kobain style in sunglasses has returned although it is not easy: first because white is a complex color (usually, the worse the darker your skin); second, because they come back but with a rounded shape a little extreme.
They are good for faces like Kurt's, square and with some very marked features on cheekbones and chin. Very fun for the summer but very little formal.
Beyond the big brands, you can find this type of glasses almost anywhere (in the end, they are white and plastic). The best way to embrace this trend is to do like Kurt: rely enough on yourself ... or not be afraid to draw attention a little more than the account. He also took them later in red, maybe it's a more discreet plan B.