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Sunglasses are available in numerous shapes, colors, and styles. This can make it quite complicated to find sunglasses that suit you. To find the perfect pair of sunglasses it is important to keep the measurement and the face-shape in mind.

Size code of sunglasses

When you already have a pair of sunglasses, you can find the size in one of the temples. Each pair of sunglasses has a set of numbers on the temple. Take the Ray-Ban Justin sunglasses: RB4165-622/T3-54-16-145 as an example. (RB4165) is the model code of the sunglasses and the second part (622/T3) is the color code. Next is the lens width and width of the bridge, which in the above case are 54 mm and 16 mm. The last code 145 is the length of the temple. 3P is divided into two meanings. the number three is the light transmittance. This means how much light the sunglass is blocking. The P stands for polarized. If the code is no longer readable, don't panic, because you can easily measure the dimensions of the sunglasses with a tape measure!

If you don't have sunglasses yet and still want to have one, there are two ways to determine which size sunglasses you need:

  • Credit card; a credit card has almost the same width as a standard-sized lens. To find out what size sunglasses you need, keep the credit card vertically under your eye, and look in the mirror. If the credit card stops at the end of your eye, you should go for a standard-sized sunglasses M (medium). If the credit card is bigger than your eye, you have an S (small). If the credit card does not pass the eye, go for size L (Large).
  • Tribal rule; If you don't have a credit card on hand, you can figure out the size you need by calculating the following. As an example, we take the Justin described above. This shows that the lens width per glass is 54 mm. Since sunglasses consist of two glasses and the width of the bridge of the nose, you need to add them together. For example, the width of the glasses (lens width 54 mm x 2 = 108 + nasal bridge 16 mm = 124 mm) is 124 mm, i.e. 12.4 cm. Then measure your head at the height of your sleep and measure from sleep to sleep. The length of sleep to sleep should roughly match the size of the glasses or 12.4 cm. Keep in mind that some glasses are wider due to a thick frame or because a frame extends a little further.

Sunglasses that are too big or too small bring many disadvantages. When the sunglasses are too big, they will fall off your head as you move or won't protect your eyes completely. When sunglasses are too small radiation can still reach your eyes and they will hurt around your nose and ears.

Lens width and lens height

A lens of sunglasses consists of the lens width and height. The lens width represents the widest measured point on the horizontal axis. The lens height represents the highest point of the sunglasses. The size of sunglasses always assumes the lens width.

Bridge of the nose

The bridge of the nose is the distance between two sunglasses. Do you have a narrow nose, or are your eyes close together? Then sunglasses with a 14 to 19-millimeter bridge of a nose bridge is a fitting choice. It's better to choose for a 19 to 22-millimeter nose bridge when your nose is broader.


The length of the temple is measured from the hinge to the end behind your ear, including the curve. The most common sizes of temples are 140, 145, and 150 millimeters.

Face Shapes

As with clothing, the same applies to sunglasses; not all face shapes are the same, and not every face shape suits the same model of sunglasses. Yet, how do you choose those stylish sunglasses that fit your face shape? Be aware of your face shape and the features that emerge in your face. A suitable pair of sunglasses is the determining factor of your killer look! Also pay close attention to the eyebrows, because did you know that your eyebrows should be above your sunglasses? Your eyebrows define 80% of your facial expression!

Round face

The round face shape can wear many different types of sunglass models except round sunglasses. Sunglasses with an oval, or rectangular model are perfect to enhance the contours of your face, because they emerge a balance. When you want to go for an iconic look, you can go for a pair of cat-eye sunglasses!

Square face

The square face shape is suitable for sunglasses with curves and soft lines. Round models counterbalance the angular shapes of the face. They also give your face a softer look and accentuates the cheekbones. Don't go for angular or square frames because these emphasize the straight lines in the face.

Rectangular face

People with a rectangular face will notice that the forehead, cheeks, and cheekbones are almost as wide apart for each other. Square or angular frames will soften the contours of the face. Never go for a small frame, because they lengthen the face. However, oversized sunglasses will look glamorous!

Oval face

When you have an oval face shape, you will notice that the forehead and chin is slightly narrower than the cheeks. The oval face shape can wear a lot of different models of sunglasses, because the face is harmony. Rectangular glasses create characteristic contours, but also a stylish or bold model will make you undoubtedly steal the show!

Diamond-shaped face

Diamond-shaped faces often have wide cheekbones in combination with a narrow forehead and chin. Sunglasses with oval glasses or rounded corners are the most fitting. Also, sunglasses with a higher and broader frame fit very well. You often see this in sunglasses with square or hexagonal glasses. 

Heart-shaped face

When you have a heart-shaped face, the forehead and cheeks are broad, and ends in a narrow chin. Balance the face with a stylish pair of sunglasses. Go for round sunglasses, or pilot sunglasses, because they make the chin look softer without highlighting the forehead.

Comparing sunglasses

Find an extensive overview of all sunglasses in the category of all sunglasses. The category has a broad collection of 5000 sunglasses. Compare your must-have sunglasses based on brand, model, price, and specifications and discover which sunglasses suit you best! Curious about our new 2020 collection? View the new collection here!