Choosing sunglasses isn’t just about knowing the hottest trends, it’s also about knowing which style will best flatter your face shape.

You've got a square face if you've got a broad, deep forehead, wide jaw line and square chin. Choose round style frames to soften the jaw line, try round and oval style frames that will soften the shape of your face.

Jemma Gofton's picked out the best of the styles at Selfridges to suit you.