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How To Tell What Mm Your Oakley Sunglasses Are

Have you ever wondered how to determine the size of your Oakley sunglasses? Oakley sunglasses come in various sizes, and knowing the exact millimeter (mm) measurement is crucial for finding the perfect fit. In this article, we will guide you through the process of determining the mm size of your Oakley sunglasses. So let's dive in and unravel the mystery!

1. Why Does the Mm Size Matter?

Before we delve into the specifics, let's understand why the mm size of your Oakley sunglasses is important. The mm size refers to the lens width, which directly affects the fit and comfort of the sunglasses. Wearing sunglasses that are too narrow or too wide for your face can lead to discomfort and compromised protection from the sun's harmful rays. Therefore, it's essential to identify the mm size that suits you best.

2. Check the Inside of the Temple Arm

The first step in determining the mm size of your Oakley sunglasses is to check the inside of the temple arm. The temple arm is the part that extends from the frame and rests on your ears. Look for a series of numbers and letters on the inside of the temple arm. These markings usually include the mm size, along with other information such as the model number and color code.

3. Look for the Lens Width Measurement

Among the markings on the inside of the temple arm, you will find the lens width measurement. It is usually denoted by the letters "EW" or "Lens Width" followed by a number in millimeters. This number represents the width of one lens from side to side. For example, if you find "EW 55mm" or "Lens Width 55mm," it means your Oakley sunglasses have a lens width of 55mm.

4. Measure the Lens Width Yourself

If you can't find the mm size on the inside of the temple arm or if the markings are worn out, don't worry! You can measure the lens width yourself using a ruler or a measuring tape. Place one end of the ruler on the outer edge of the left lens and measure straight across to the outer edge of the right lens. The resulting measurement in millimeters is the lens width of your Oakley sunglasses.

5. Consider the Frame Style

While determining the mm size, it's also important to consider the frame style of your Oakley sunglasses. Different frame styles can have varying sizes, even within the same model. For instance, aviator-style sunglasses may have larger lens widths compared to rectangular or square-shaped frames. So, keep in mind the frame style when choosing the right size for your face.

6. Visit an Authorized Oakley Retailer

If you're still unsure about the mm size of your Oakley sunglasses, it's always a good idea to visit an authorized Oakley retailer. The knowledgeable staff can assist you in finding the perfect fit by measuring your face and recommending the appropriate mm size. They can also guide you through the different Oakley models and styles available, ensuring you make an informed decision.

7. Online Resources and Oakley's Official Website

In addition to visiting a physical store, you can also utilize online resources to determine the mm size of your Oakley sunglasses. Oakley's official website provides detailed information about their sunglasses, including the mm size for each model. You can browse through their product pages and find the desired mm size before making a purchase. Online retailers and forums can also be helpful in providing insights from other Oakley users.

8. Consider Trying On Different Sizes

Sometimes, the best way to determine the mm size that suits you is by trying on different sizes. Visit a store that carries Oakley sunglasses and try on various pairs to see which size feels the most comfortable and provides the best fit. This hands-on approach allows you to assess how the sunglasses look and feel on your face, giving you a better understanding of your preferred mm size.

9. Importance of Proper Fit

Remember, finding the right mm size for your Oakley sunglasses is crucial for comfort, visual clarity, and overall satisfaction. Ill-fitting sunglasses can cause discomfort, headaches, and even affect your vision. By investing time in determining the correct mm size, you can ensure that your Oakley sunglasses provide optimal protection and enhance your style.


Determining the mm size of your Oakley sunglasses is essential for finding the perfect fit. By checking the inside of the temple arm, measuring the lens width yourself, considering the frame style, visiting an authorized retailer, utilizing online resources, and trying on different sizes, you can confidently identify the mm size that suits you best. So go ahead, grab your Oakley sunglasses, and enjoy the perfect fit while protecting your eyes in style!