Sunglasses Guide: What types of sunglasses are there?

Aviators were initially developed for pilots to protect their eyes whilst flying. Now aviators have made the crossover from a functional safety item to a fashionable must-have. Their vintage thin metal frames and kaleidoscopic reflective lenses are instantly recognisable. The adaptable and timeless nature of aviators has made them one of the most popular choices of sunglasses in history. While originally developed by Ray-Ban, almost all designers now stock their own version of the Aviator.

They say lightning doesn't strike in the same place twice, but Ray-Ban proved that theory wrong. Having already scored a hit with the Aviator, Ray-Ban also delivered the Wayfarer. Developments in plastic moulding technology meant that Ray-Ban could move away from metal frames and offer a more modern shape of frame. Wayfarers have a square-like appearance with rounder edges that evoke a more casual appearance.

A must-have among trendy festival-goers, round sunglasses were first popularised by the most famous member of The Beatles, John Lennon. Thin round frames create a vintage vibe while thicker, rounder frames are a little more retro, but brands are constantly revisiting this style with modern and chic alternatives.

Cat-eye sunglasses perfectly embody the playfulness and sophistication of the '50s. Compatible with most face shapes, they range from daring and bold to gentle and graceful. Cat eyes are identifiable by the upper, outer curve of the frame, which flicks outwards like a cat's eye, hence the name.

Clubmasters have a very particular type of framing that separates them from other styles. The upper portion of the frame is bigger and bolder than the lower half and is typically crafted from the same plastic or acetate used on the arms. The other parts of the frame, including the bridge, is usually made from metal. Clubmaster sunglasses were based on the browline style of glasses which were very popular during the 1950s and 60's.

While they may not get as much attention as some of the other shapes, they are still a great choice of frame, especially if you prefer to wear brighter colours.

Also known as shield sunglasses, wrap sunglasses are considered great for sports. The functionality and ergonomic design of these frames are ideal for active lifestyles.

They are called wrap sunglasses as the frame wraps around your head, providing peripheral coverage and allowing a wider field of vision. These types of sunglasses are the most popular among athletes and those who enjoy playing sports.

Heart sunglasses offer a fun, playful and slightly retro vibe. These quirky sunglasses are perfect for making a statement and come in many variations and sizes. You can find cat-eye heart shaped silhouettes or even side-ways heart shaped frames, as well as regular heart shaped frames. These fun frames boast personality and uniqueness and will complement any face shape.

Square sunglasses offer versatility, classic style and above all, mystery. American Vogue editor Anna Wintour is famed for her dark square frames, which she wears to almost every fashion show she attends. Square sunglasses will suit nearly every face shape but work exceptionally well for those with round faces as they add angles and structure.

Oval frames have a rounded appearance but are more generous in width than they are in depth, comfortably covering the eye for sun protection. Oval lenses are perfect for every occasion – smart or casual - and look incredibly stylish when the frames are thicker and one colour tone. Nail the care-free but classy look every time.

Rectangle frames are a softer alternative to square frames. Far narrower, they pull focus towards the centre of the face, which makes them highly compatible with oblong and longer-shaped faces. They're available in a wide range of styles including retro, sporty, casual and vintage.

Prada was among the first high-end designers to popularise the butterfly frame shape. This style has a large surface area that covers the eye socket to offer better protection against UV rays. Butterfly lenses are usually wider on the outside, but narrower towards the nose. Edgy, fun and playful, they offer a youthful alternative to more classic frames.

Hexagonal sunglasses combine a round and square frame shape for a trendy alternative. The modern aesthetic is a fashion-forward choice, great for those looking to stand out in something a little bit different.

Octagonal sunglasses provide frames of a square and circle hybrid and are somewhat retro in style, offering a glam 70s aesthetic. They are designed to add contour and structure to the angles of your face for a very flattering look.