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Choosing the right eyewear can be a complex process. This guide will help you find your best match. All eyewear has different functional and aesthetic characteristics, so we use three pieces of information to determine the following:
If you need help finding the right size, try our Size Advisor:
The size of the frame counts as functional information, which is defined by one principal number:
This information defines the following sizes:
| Hinge to hinge (in) | Hinge to hinge (mm) | Size |
|---|---|---|
| <4.8 | <121 | XXS |
| 4.8-4.9 | 121-124 | XS |
| 4.9-5 | 125-128 | S |
| 5.1-5.2 | 129-132 | M |
| 5.3-5.4 | 133-136 | L |
| 5.4-5.5 | 137-140 | XL |
| >5.5 | >>140 | XXL |
Try our Size Advisor and we'll measure it for you! Or, you can use a ruler to measure the hinge-to-hinge distance of a pair of glasses that you already own.
If you already own a pair of glasses, you’ll find numbers engraved on the inside of the eyewear temple. These numbers indicate the following:
The first number is the model name, followed by the lens width and bridge width.
There is usually a third number that represents the temple length, or the measurement of the "arms" of your frame.
Sometimes there is a fourth number that indicates the lens height.
Each of these numbers is measured in mm.
Fitting is aesthethical information which determines the amount of face coverage for a given size.
The frames shown in the image are all the same size but each one has a different fit.
The three possible fittings are:
The four bridge and nosepads options are:
COSTA
6S9118 Finlet
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Choose your vision need and add your prescription.
Select lens type and thickness, then add specialized treatments.
Enjoy through aftercare with our 30 day happiness guarantee.
Frame
Material: Bio-Based Injected
Shape: Rectangle
Color: Matte Black
Product measurements
Size: 59 - 19 One size only
Lens width: 59 mm / 2.32 in
Bridge width: 19 mm / 0.75 in
Temple length: 125 mm / 4.92 in
Lens
Treatment: Mirror
Color: Green Mirror
Engineered for adventure, the Costa 6S9118 Finlet sunglasses are built to perform in demanding conditions. The rectangular full-rim frames in sleek black offer structure and durability, making them a stylish choice for those seeking black sunglasses for men. The double-injected Hydrolite material ensures long-lasting wear, while advanced polarized green mirror lenses reduce glare, enhance contrast, and deliver 100% UVA/UVB protection for superior clarity on the water. Featuring finlet-inspired side shields and an 8-base wrap design, these Costa sunglasses provide exceptional coverage and protection. Retainer-ready temple tips keep your frames secure as you explore. Designed for those who need water to breathe, the Finlet is crafted to withstand every challenge.
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