OO 9231 Oakley Sunglasses

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The right size frames

With thousands of frames to choose from, how do you choose a pair of glasses that will fit correctly? On this page, you'll learn two methods for choosing a great-fitting frame, without having to try them on first. These tips are extremely handy if you are considering purchasing your next pair of glasses on the internet. If you do decide to buy online, it is advisable to choose a supplier that offers an exchange or return service, just in case!

Calculate Your Frame Width

Determining your frame width is crucial for selecting glasses that fit well and look great. It's a simple step that guides you to the ideal eyewear size for optimal comfort and style. Follow these steps for a perfect fit:

Measure the width of one lens to find your eye size. Multiply your eye size by 2.

Measure the width of the bridge (the part over your nose).

Diagram showing bridge width measurement

Add 11mm to account for the frame's arm width from the front.

Example: If your eye size is 50mm and your bridge width is 20mm:

Double Eye Size: 50mm x 2 = 100mm

Add Bridge Width: 100mm + 20mm = 120mm

Add for Arms: 120mm + 11mm = 131mm

Your ideal frame width is 131mm(+ or - 4mm for flexibility).

Our Helpful Sizing Tool

Size	Measurement (mm)
Small	115-135
Medium	130-140
Large	135-145
Extra Large	140-155

Our sizing tool simplifies the process of finding the perfect glasses by categorising them into four sections: Small, Medium, Large, and Extra Large. With just a few clicks, you can find the size that will provide the best fit and comfort. Our tool helps us deliver glasses that fit well and look great, and it's available under the "size" dropdown on our catalogue pages. If you're looking for something more specific, you can adjust the sizing sliders under the "Advanced sizing" option. Find your perfect pair with ease using our sizing tool.

Finding your frame size

When selecting a new pair of glasses, it's important to know your frame size to ensure a comfortable and proper fit. This diagram illustrates where to find the size measurements on your current pair of glasses. Typically, these measurements are located on the inside of the arm and are listed in millimeters. The first number represents the lens width (Eye size), the horizontal diameter of one lens6. The second number is the bridge width, the distance between the two lenses. Lastly, the third number indicates the length of the arm. To find the best fit, compare these measurements to the size specifications of the new glasses you are considering.

The number on the left-hand side of the square box is the "Eye Size" and is sometimes referred to as the "A" measurement. This is the width of the lens at its widest point measured in millimetres (see A in the diagram below).

The number on the right-hand side of the square box is the "Bridge Width" and is sometimes referred to as the "DBL" (distance between lenses). This is the distance between the two lenses measured in millimetres.

You may also find a third, three-digit number. This is the "Arm Length". The arm length is measured in millimetres from the attachment screw to the tip of the arm. The measurement is made before the bend is put into the arm.

Lens Depth

You may have noticed that thus far, we have not mentioned the Lens Depth. This measurement will largely depend on the style of frame you decide upon and in many cases, is not required to identify a good-fitting frame. However, if you are choosing glasses for bifocals or varifocals, be mindful that the shallower the frame is, the less area there will be available for the reading element of your lens.

When purchasing Varifocals we recommend a Lens Depth of at least 27 millimetres. For this reason, at Spex4Less, Varifocal lenses will not be available to purchase on frames with a lens depth of fewer than 27 millimetres.

The right size frames

Calculate Your Frame Width

Measure the width of one lens to find your eye size. Multiply your eye size by 2.

Measure the width of the bridge (the part over your nose).

Add 11mm to account for the frame's arm width from the front.

Example: If your eye size is 50mm and your bridge width is 20mm:

Double Eye Size: 50mm x 2 = 100mm

Add Bridge Width: 100mm + 20mm = 120mm

Add for Arms: 120mm + 11mm = 131mm

Your ideal frame width is 131mm(+ or - 4mm for flexibility).

Our Helpful Sizing Tool

Size	Measurement (mm)
Small	115-135
Medium	130-140
Large	135-145
Extra Large	140-155

Finding your frame size

Lens Depth

Need help choosing your size?

*Includes Non-Prescription Original Lenses

About this frame

Measurements: mm

Eye Size: 61 | -

Bridge Width: 16 | -

Arm Length: 129 | -

Frame Width: 149 | -

Lens Depth: 39 | -

Not sure on your size? Check out our guide on choosing your frame size
Frame Details:

Gender: Mens

Material: Plastic

Hinge Type: Hinged

Multifocal: Yes

Frame Type: Rimless
Discover the impeccable blend of style and comfort with the Oakley OO 9231 sunglasses. Crafted from durable plastic, these frames promise longevity and reliability, designed to endure your active lifestyle. The sleek and modern rectangular shape offers a bold look, ideal for those who crave a fusion of contemporary style and timeless charm. The Oakley branding adds a touch of sophistication, making these sunglasses a standout accessory for any occasion. Whether you're heading out for a casual day in the sun or engaging in your favourite outdoor activities, these frames deliver unparalleled comfort with their lightweight construction. The distinctive design elements, including the subtle yet striking geometrical accents on the temples and the iconic Oakley logo, make these sunglasses not just a functional choice but a fashion statement. Feel confident and look sharp, knowing your eyewear epitomizes quality and elite craftsmanship. Embrace the perfect combination of elegance and practicality with Oakley OO 9231 sunglasses, your ultimate companion for any adventure.
Spex4less's Assurance to You

At Spex4less, we are committed to providing our customers with high-quality eyewear that meets their needs and exceeds their expectations. Our confidence in the quality and durability of our products is reflected in our customer-friendly policies.

100% Satisfaction Guarantee:

Not satisfied with your glasses? Return them within our specified period for a full refund.

12-Month Frame Warranty

Enjoy peace of mind with our 12-month warranty on all frames against manufacturing defects.

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OO 9231 Oakley Sunglasses

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Finding your frame size

Lens Depth

About this frame

Measurements: mm

Frame Details:

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