A must-have summer essential? Sunglasses. Whether you opt for a classic or trendy style, hunting down the perfect sunnies to complement all your summer outfits is a major sartorial challenge. To make your search much easier, there’s one all important question that must be answered first – what’s the shape of your face?

Knowing exactly which category you fall into (whether it’s round, oval, square or heart shaped face) will save not only a lot of time but money too – there’s nothing quite as annoying as splurging on sunglasses only to never wear them again.

Check out our mini guide below and click here for a fun tool created by My Glasses Guru for more suggestions based on skintone and hair colour to help avoid any disappointments and ensure you invest in timeless frames

Heart shape – Opt for cat-eye or aviators to complement a pointy chin, high cheekbones and a wide forehead.

Round – Steer clear of round sunglasses and stick with Wayfarers or rectangular shapes to give definition and length to a circular face.

Oval – The options are endless for an oval face. Any style especially these Tom Ford oversized shades are ideal.

Square – Stay away from structured shapes and soften a strong jaw line and narrow forehead with round frames, oversized cat-eye sunglasses or aviators.