If you have a squared shaped face, a pair of round or oval shaped sunglasses will compliment you nicely,
whereas a triangle shaped face will suit any style of cats-eye.
Round faces suit the oversized style and if you don't know your shape! then the trusty old aviator will fit you nicely. The aviator style suits almost every face because of the unique cut and stylish edging.
above: Karen Walker, Harvest Black Round sunglasses
House of Harlow 1960 Chelsea sunglasses