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The Oakley Socket 5.5 OX3218 eyeglasses bring Oakley's sports performance DNA to everyday prescription eyewear. Built from ultra-lightweight C-5 alloy—a fusion of five metallic compounds—these semi-rimless frames deliver the durability and precision fit that Oakley is known for, without the bulk of traditional metal frames.
Industrial Design Meets Everyday Comfort
The Socket 5.5 pays tribute to Oakley's heritage of industrial design. The swept angles at the bottom of the lenses draw inspiration from Oakley's distinct sports eyewear, while the angled chamfers echo the geometry of a socket wrench. It's a clean, modern look that works equally well in the office or outdoors. The semi-rimless rectangle shape provides sharp structure and definition, particularly flattering for square and heart-shaped faces.
Oakley's Three-Point Fit technology ensures the frame only contacts your head at the bridge and behind the temples. This eliminates pressure points and keeps the lenses in precise optical alignment throughout the day. Air-filled silicone nosepads adjust to your unique facial contours, while Unobtainium earsocks—Oakley's proprietary grip material—actually increase traction when you perspire, keeping the frames securely in place during active wear.
Built for Prescription Lenses
These frames are prescription-ready and accommodate a wide range of vision needs, from single vision to progressive lenses. The semi-rimless design keeps weight down while providing enough frame structure to support most prescription strengths. Integrated spring hinges add flexibility and durability, adapting to your facial contours for a snug, comfortable fit. Available in multiple lens widths (52mm and 54mm) and a variety of finishes including satin black, matte midnight, and satin pewter, the Socket 5.5 offers options to match your personal style.
Each pair includes a protective carrying case and is backed by Oakley's commitment to quality craftsmanship. The frames feature the laser-etched Oakley ellipse logo for authenticity.
Product Details
Product DetailsModel
0OX3218Shape
Gender
Material
Bridge Type
Rim Type
Age Group
Color Details
Color DetailsFrame Color
BlackColor Code
321804Color Description
Satin Black
Color Code
321808Color Description
Satin LeadLens Color
Clear
Frame Color
BlueColor Code
321803Color Description
Matte Midnight
Frame Color
BlueColor Code
321803Color Description
Matte Midnight
Frame Color
BlackColor Code
321801Color Description
Polished Black
Frame Color
SilverColor Code
321802Color Description
Satin Pewter
Frame Color
BlackColor Code
321801Color Description
Polished Black
Frame Color
BlackColor Code
321804Color Description
Satin Black
Frame Color
GrayColor Code
321806Color Description
Satin Pewter/poisedon BlueLens Color
Clear
Frame Color
BlackColor Code
321801Color Description
BlackLens Color
Clear
Frame Color
BlackColor Code
321804Color Description
Black
Frame Color
SilverColor Code
321802Color Description
SilverLens Color
Clear
Color Code
321803Color Description
BlueLens Color
Clear
Color Code
321810Color Description
Satin OliveLens Color
Clear
Color Code
321811Color Description
Brushed Grenache
Color Code
321811Color Description
Brushed Grenache
Color Code
321811Color Description
Brushed Grenache
Frame Color
SilverColor Code
321812Color Description
Dk Mt Silver/blue Colorshift
Frame Color
SilverColor Code
321812Color Description
Dk Mt Silver/blue Colorshift
Frame Color
SilverColor Code
321812Color Description
Dk Mt Silver/blue Colorshift
Color Code
321813Color Description
Matte Gunmetal
Color Code
321813Color Description
Matte Gunmetal
Frame Color
BlackColor Code
321814Color Description
Satin Black
Color Code
321813Color Description
Matte Gunmetal
Frame Color
BlackColor Code
321814Color Description
Satin Black
Frame Color
BlackColor Code
321814Color Description
Satin Black
Frame Color
BlackColor Code
321816Color Description
Satin Black
Frame Color
BlackColor Code
321816Color Description
Satin Black
Frame Color
BlackColor Code
321816Color Description
Satin Black
Color Code
321817Color Description
Titanium
Color Code
321817Color Description
Titanium
Color Code
321817Color Description
Titanium
Color Code
321818Color Description
Mahogany
Color Code
321818Color Description
Mahogany
Color Code
321818Color Description
Mahogany
Color Code
321815Color Description
Grey On Gunmetal
Color Code
321815Color Description
Grey On Gunmetal
Size Details
Size DetailsLens Width
52mmBridge Width
18mmTemple Length
138mmSize
5218-138
Size
5418-136
Lens Width
52mmBridge Width
18mmTemple Length
138mmSize
5218-138
Lens Width
54mmBridge Width
18mmTemple Length
138mmSize
5418-138
Lens Width
54mmBridge Width
18mmTemple Length
138mmSize
5418-138
Lens Width
54mmBridge Width
18mmTemple Length
138mmSize
5418-138
Lens Width
52mmBridge Width
18mmTemple Length
138mmSize
5218-138
Lens Width
54mmBridge Width
18mmTemple Length
138mmSize
5418-138
Lens Width
54mmBridge Width
18mmTemple Length
138mmSize
5418-138
Size
5618-138
Size
5618-138
Size
5618-138
Size
5618-138
Size
5218-136
Size
5618-140
Size
5418-136
Size
5218-136
Bridge Width
18.00Temple Length
140.00Size
5618-140
Bridge Width
18.00Temple Length
136.00Size
5418-136
Bridge Width
18.00Temple Length
136.00Size
5218-136
Bridge Width
18.00Temple Length
136.00Size
5418-136
Bridge Width
18.00Temple Length
140.00Size
5618-140
Bridge Width
18.00Temple Length
136.00Size
5218-136
Bridge Width
18.00Temple Length
136.00Size
5218-136
Bridge Width
18.00Temple Length
136.00Size
5418-136
Bridge Width
18.00Temple Length
140.00Size
5618-140
Bridge Width
18.00Temple Length
136.00Size
5218-136
Bridge Width
18.00Temple Length
140.00Size
5618-140
Bridge Width
18.00Temple Length
136.00Size
5418-136
Bridge Width
18.00Temple Length
136.00Size
5418-136
Bridge Width
18.00Temple Length
140.00Size
5618-140
Bridge Width
18.00Temple Length
136.00Size
5218-136
Bridge Width
18.00Temple Length
136.00Size
5218-136
Bridge Width
18.00Temple Length
140.00Size
5618-140
Bridge Width
18.00Temple Length
136.00Size
5418-136
Bridge Width
18.00Temple Length
136.00Size
5418-136
Bridge Width
18.00Temple Length
140.00Size
5618-140
I love these frames so much I bought another pair great customer service fast delivery I recommend this company 😎
Do not order from these people whatsoever they have the worst customer service ever and they never get back with you terrible Service never deal with them again
Oakley Socket 5.5 3218 Eyeglasses
Metal feels heavy and high quality. I went with the trivex lenses and have been impressed with the clarity. Very happy with these new glasses!
Oakley Socket 5.5 3218 Eyeglasses
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Frequently Asked Questions
Are Oakley Socket 5.5 frames prescription-ready?
Yes, the Oakley Socket 5.5 OX3218 frames are fully prescription-ready and designed to accommodate most prescription lenses. They support single vision, progressive, bifocal, and multifocal lenses from low to high prescriptions. The semi-rimless design provides enough frame structure to securely hold prescription lenses while keeping the overall weight minimal.
What is C-5 alloy and why does Oakley use it?
C-5 alloy is Oakley's proprietary frame material created by fusing together five metallic compounds. This specialized alloy is ultra-lightweight yet extremely durable and flexible, making it ideal for all-day wear. The material allows Oakley to create frames that are both strong enough to withstand daily use and comfortable enough to wear for extended periods without causing pressure points.
What is Oakley's Three-Point Fit technology?
Oakley's Three-Point Fit is a patented fitting system where the frame only touches your head at three specific points: the bridge of the nose and behind both temples. This design eliminates uneven pressure points and holds the lenses in precise optical alignment with your eyes throughout the day, maximizing both comfort and optical performance.
What's the difference between Socket 5.5 and Socket 5.0?
The Socket 5.5 features a semi-rimless design with no rim underneath the lens, making it lighter and more minimalist. The Socket 5.0 has a full-rim frame design that completely encircles the lenses. Both share the same swept angles and socket wrench-inspired design language, C-5 alloy construction, and Three-Point Fit technology, but the Socket 5.5 offers a more refined, professional aesthetic.
What are Unobtainium earsocks and how do they work?
Unobtainium is Oakley's proprietary rubber material used on the temple tips (earsocks) and sometimes nosepads. The unique property of this material is that it becomes tackier and increases grip when exposed to moisture or perspiration. This means the frames actually stay in place better during physical activity or in warm conditions, preventing slippage.
What size options are available for the Socket 5.5?
The Oakley Socket 5.5 is available in two lens widths: 52mm and 54mm. The frame also comes in a 56mm size in select colors. These size options ensure a proper fit for different face widths. The 52mm is considered small to medium, while the 54mm and 56mm sizes accommodate medium to larger faces. All sizes feature adjustable silicone nosepads for a customized fit.
Compare With Similar Frames
How the Oakley Socket 5.5 3218 Eyeglasses stacks up against the closest alternatives we carry.
- Full-rim design provides maximum lens security and durability
- Better suited for very high prescriptions
- More coverage and protection for lenses
- Similar semi-rimless construction and weight
- Comparable price range ($128.93-$227)
- Modern alternative design
- Unique design aesthetic with Oakley's signature industrial style
- Similar price range ($139.88-$255)
- Premium metal construction with Oakley technology
Read the full comparison
Socket 5.5 vs Socket 5.0: Semi-Rimless or Full-Rim?
The most common comparison shoppers make is between the Socket 5.5 and its full-rim sibling, the Oakley Socket 5.0. Both frames share Oakley's industrial design heritage—those distinctive swept angles at the bottom of the lenses and socket wrench-inspired chamfers—but they differ in rim construction.
The Socket 5.5's semi-rimless design eliminates the bottom rim, creating a lighter, more refined look that's particularly well-suited for professional environments. It's also noticeably lighter on the face. The Socket 5.0's full-rim construction provides maximum lens security and is often preferred for very high prescriptions or by those who want more frame presence. If you prioritize a minimalist aesthetic and lighter weight, the Socket 5.5 is the better choice. If you need maximum durability or prefer a bolder frame, consider the Socket 5.0.
Other Oakley Semi-Rimless Alternatives
For customers who like the semi-rimless style but want to explore other designs, the Oakley Cathode 3233 offers a similar construction in a comparable price range ($128.93-$227). Both frames use C-5 alloy and Three-Point Fit technology, but the Cathode has a different aesthetic that may appeal to those seeking a more contemporary look.
The Oakley Steel Plate 3222 ($139.88-$255) provides another premium metal option with Oakley's signature industrial design language, though in a different frame style. All three frames deliver Oakley's commitment to lightweight comfort and precision fit, so your choice comes down to which design best matches your personal style and face shape.
At a Glance
Oakley Socket 5.0 3217 Eyeglasses
Pros:
- Full-rim design provides maximum lens security and durability
- Better suited for very high prescriptions
- More coverage and protection for lenses
- Available in three sizes (53, 55, 57mm)
Cons:
- Slightly heavier than the Socket 5.5 due to full-rim construction
- Less minimalist aesthetic
- Higher price point ($196-$227 vs $113.50-$227)
Oakley Cathode 3233 Eyeglasses
Pros:
- Similar semi-rimless construction and weight
- Comparable price range ($128.93-$227)
- Modern alternative design
- Same C-5 alloy and Three-Point Fit technology
Cons:
- Different aesthetic may not suit all face shapes
- Less iconic design heritage than the Socket series
- May have different size availability
Oakley Steel Plate 3222 Eyeglasses
Pros:
- Unique design aesthetic with Oakley's signature industrial style
- Similar price range ($139.88-$255)
- Premium metal construction with Oakley technology
- Different frame shape options for varied face types
Cons:
- Different design language than the Socket series
- May have different fit characteristics
- Potentially heavier depending on frame style