Oakley Sielo SQ
It’s always sunny when you’re wearing Sielo SQ. The sporty Sielo SQ features a classic square lens shape constructed from lightweight BiO-Matter and C5 frame material and Unobtainium nosepads for a no-slip grip. Soft touch earsocks and a three-point fit ensure comfort, whether you’re gearing up for the hiking trail or busiest day of your week. For enhanced color and contrast everywhere you go, Prizm Lens Technology provides the details.
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Wherever You Go: The mixed material frame and seamlessly integrated performance features help cross this style from activities to daily life
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Lightweight and Durable: The BiO-Matter frame front and ultra-lightweight, C-5 metal temples provide durability and all-day comfort. BiO-Matter is made from bio-materials having at least 56% bio-based carbon content (representing ratio of castor oil to fossil sources)
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No-Slip Grip: The Unobtainium nosepads help provide retention with a no-slip grip and all-day comfort. Propionate temple tips provide additional retention and comfort
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See More Details: Available with Prizm lenses that are designed to enhance color, contrast so you can see more detail
Features & Technology:
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Prizm Grey Gradient Light Transmission: 15% |
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Frame Frame Color: Polished Black Ink |
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Prizm Brown Gradient Light Transmission: 14% |
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Frame Frame Color: Matte Grenache |
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Prizm Black Polarized Light Transmission: 11% |
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Frame Frame Color: Matte Black Tortoise |
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Prizm Deep Water Polarized Light Transmission: 12% |
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Frame Frame Color: Matte Crystal Black |
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Prizm Berry Light Transmission: 35% |
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Frame Frame Color: Matte Vapor |
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Prizm Rose Gold Light Transmission: 13% |
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Frame Frame Color: Matte Grey Ink |
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Prizm Grey Polarized Light Transmission: 17% |
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Frame Frame Color: Matte Olive Ink |
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Prizm Black Polarized Light Transmission: 11% |
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Frame Frame Color: Matte Transparent Abyss |
Fit Information:
The fit is an aesthethical information indicating the amount of face coverage for a specific size.

The frames shown in the image are all the same size but have different fit. The three possible fittings are:
- Narrow: A small lens front designed to fit those with a slightly narrow head.
- Regular: A large lens front designed to fit those with an average-sized head.
- Wide: A large lens front designed to fit those with a wide head.
Frame Size:
Our sunglasses effortlessly conform to your unique face shape, no exceptions. If you already have a pair of glasses, check for engraved numbers on the inside of the temple.

The first one is the Model code, then the Lens width and Bridge width. There is usually a third number which represents the Temple Length, which is the measurement in millimeters of the 'arms' of the frame. Sometimes there is also a fourth number which is the Lens Height.
Each of these numbers is measured in mm. Frames are measured in millimeters. We've included this information for each of our frames to help you estimate how they'll fit your face.


Frames & Lenses:
- Size: L (135mm)
- Lens Height: 48 mm
- Frame Width: 135 mm
- Arm Length: 141 mm
- Lens Width: 57 mm
- Bridge Width: 18 mm
Bridge & Nosepads:
This functional information describes the different types of the bridge and the nosepads. The options are:
- High Bridge Fit: Offers a more secure and comfortable fit if you have a high nose bridge and lower cheekbones. A good choice if your nose sits above your pupils.
- Low Bridge Fit: Offers a more secure and comfortable fit if you have a low nose bridge and higher cheekbones. A good choice if your nose sits lower than your pupils.
- Universal Fit: Offers a comfortable fit and accommodates most people.
- Adjustable Nosepads: Nosepads that can be widened or narrowed to fit your unique nose shape.


Payment & Security
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