Classic Keyhole Bridge Polarized Sunglasses for Modern Eyewear Brands
Here's the frame: a lightweight TR90 front, acetate temples, polarized UV400 lenses, and a rounded square shape. These classic keyhole bridge polarized sunglasses (buyers often shorten that to keyhole sunglasses) come straight from a factory with 22 years of eyewear manufacturing behind it. If you source wholesale polarized sunglasses or unisex lifestyle styles, this is the kind of core piece you build a collection around.
Product Specifications at a Glance
| Specification | Details |
|---|---|
| Front Frame | TR90 |
| Temples | Acetate |
| Lens | Polarized |
| UV Protection | UV400 |
| Frame Shape | Rounded Square (P3 Family) |
| Bridge Design | Keyhole |
| Frame Weight | 22g |
| Frame Dimensions | 47□21-148mm |
| Frame Colors | 8 Colorways Available |
| Style | Classic / Vintage-Inspired / Lifestyle |
| Gender Positioning | Unisex |
| Customization | OEM / ODM / Private Label |
| MOQ | 100 pcs per order |
| Sample Lead Time | 7 days |
| Manufacturer | Eyewear factory with 22 years of experience LEEYEWEAR |
Detailed measurements and sample availability are provided on request.
Why This Style Works for Modern Eyewear Collections
Every buyer has the same worry before adding a frame: will it still sell next year, or is it future warehouse stock? Fair question. The keyhole bridge has an unusually good answer.
Why the Keyhole Bridge Keeps Selling
The keyhole bridge spreads pressure across the sides of the nose instead of sitting on top of it. Wearers feel the difference on long days. We've produced similar silhouettes for two decades, and this detail keeps getting picked for classic collections because it photographs well and looks deliberate on the face. Retailers tell us the open bridge gets more try-ons at the shelf. We believe them.
One Shape for Every Face
The rounded-square shape fits most face types, so you don't need separate men's and women's inventory. One mold, two displays, fewer SKUs. In industry terms it sits in the P3 family, the classic rounded profile behind a lot of long-running vintage collections. Western buyers keep reordering this shape because it softens strong jawlines and sharpens softer features. A mold that stays productive across seasons is a mold that lowers your inventory risk.
Vintage Cues, Modern Executio
All the vintage character lives in the bridge and the proportions. The finish stays clean and current. You can sell it as classic or lifestyle with zero redesign, and if your collection leans on vintage round sunglasses, this rounded square gives you the same retro read on a shape that fits more faces.
One frame, steady year-round volume, plus room for limited seasonal updates.
TR90 Front + Acetate Temples: A Mixed-Material Construction
Pick a fashion sunglasses frame and you usually pick a side: light or premium. This one refuses the choice.
The TR90 front keeps the weight down (full frame:22g) and springs back from the kind of bending that kills cheaper frames. People who wear their sunglasses from the morning commute to the drive home get fewer pressure points. Fewer broken frames too, which you'll notice later in your return rate.
The acetate temples bring richer color depth and a smoother hand-feel that TR90 alone rarely matches. The front stays technical and light while the sides carry the visual and tactile cues of a higher price tier, so a brand can justify a step-up retail price on the same core mold.
Joining these two materials properly is harder than it sounds. TR90 and acetate expand at different rates and stress the hinge in different ways, and it took us 22 years of production to make those joints boring. Boring is good. Boring means the sample you approve is the container you receive.
There's a practical bonus as well: several temple colors run on the same TR90 front, so expanding a collection costs less and moves faster. The finished frame feels substantial in the hand and stays light on the face.
Polarized Lenses and UV400 Protection for Everyday Use
Function does not have to compete with style. When polarized lenses sit inside a lifestyle frame, the product earns a clearer reason to buy at a higher price point.
Polarized lenses cut horizontal glare on wet roads, water, and glass, so one pair of sunglasses serves commuting professionals, travelers, and weekend outdoor users. The effect is immediately testable at the counter, which means the functional claim converts well in retail settings.
UV400 protection is now a baseline expectation for most Western consumers. Pairing it with polarization turns that baseline into a genuine selling feature: the frame sells as fashion first, and the lenses quietly justify the price tier. For wholesale programs, that is an extra talking point that purely aesthetic frames lack.
Eight Colorways for Different Collection Strategies
One mold becomes a full product line when colorways are planned as strategy, not decoration. The eight options cover four distinct needs:
| Colorway Group | Frame | Lens | Positioning | Volume Potential |
|---|---|---|---|---|
| Classic Core (2 SKUs) | Glossy black | Dark gray / Light smoke green | High-volume backbone, unisex | High, year-round |
| Translucent & Contemporary (3 SKUs) | Translucent gray / Clear crystal / Translucent gray-green | Dark gray / Light blue | Younger, fashion-forward buyers | Medium, social-driven |
| Warm Brown (2 SKUs) | Translucent brown / Pearl brown | Brown | Autumn-winter, vintage-inspired | Seasonal |
| Gradient Statement (1 SKU) | Gray-to-clear gradient | Gradient gray | Limited seasonal drop | Low volume, high margin |
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The classic core colorways run year-round, carry the largest share of wholesale volume, and need the least seasonal explanation. Most buyers start here to secure steady turnover.
The translucent options photograph well and sit comfortably on Instagram- and TikTok-driven displays, expanding reach with no new tooling. The warm browns arrive ready-made for seasonal drops, which shortens lead time for brands running autumn and winter ranges. And the gradient colorway, used as a limited drop, carries higher perceived exclusivity and margin potential, completing the range with no dilution of the core line.
Taken as a set, the eight colorways let one design support an entire collection: mold cost drops, development cycles shorten, and inventory stays flexible.
Custom Pantone-matched colors available from 300pcs per color.
How This Style Fits Into a Modern Product LinePositioning decisions get clearer once the frame's flexibility is mapped against real collection needs.
Core Staple with Seasonal FlexibilityBrands targeting urban professionals aged 25–40 often begin with the two black core colorways and rotate translucent or brown options as the calendar shifts. Both classic and lifestyle positioning remain open, giving merchandisers room to move.
One Style, Multiple MarketsUnisex positioning reduces gender-specific inventory risk and opens men's and women's channels with the same SKU set. That matters most for smaller and mid-size brands that cannot afford parallel ranges.
A Practical SKU-Building Sequence
Eight colorways from one mold means the collection grows incrementally instead of all at once, scaling from a focused launch set to a broader range with no redesign.
Private Label and Customization OptionsMost buyers want to know what they can change before committing to a full custom development. The eight existing colorways provide a market-tested base, and customization builds on it. As a private label sunglasses manufacturer, we keep the process modular:
Temple branding: Laser engraving, pad printing, and metal inlay are all available on the acetate temples. Logos or short text can sit in positions that stay visible in both on-face and flat-lay photography, a detail that matters for brand recognition at retail. Frame and lens colors: Beyond the standard eight, Pantone-matched colors can be developed, with sample approval and bulk consistency checks as the normal process. Packaging and label development: Custom packaging, hang tags, and cases complete the private label offer. OEM and ODM routes stay open depending on how much design control the buyer requires. Low customization threshold: Logo branding starts from just 300 pcs, with mixed colors allowed in one order. Logo samples are ready within 7 days once all artwork files and details are confirmed.
Whether you need a stock colorway with your logo or a full private label run, our wholesale program scales with you and leaves the underlying frame engineering untouched.
Why Work With an Eyewear Manufacturer with 22 Years of Experience?Sourcing decisions often hinge on risk more than unit price. An OEM sunglasses factory with two decades of continuous production addresses the points trading companies cannot fully control.
Material sourcing: Direct relationships with certified TR90 and acetate suppliers keep material quality consistent. Two decades of processing both materials means their thermal and mechanical behavior is already understood, reducing surprises at the hinge and bridge. Quality inspection: Incoming material checks, in-process inspection, and pre-shipment sampling form the routine. Color batch records allow comparison between approved samples and bulk lots, so shade drift stays within acceptable limits. Certifications: CE,FDA,ISO 9001 Communication: Clear timelines, sample-before-bulk discipline, and direct factory communication shorten the feedback loop brands rely on.
An experienced factory with stable bulk production removes several layers of uncertainty from any new style launch.
Frequently Asked Questions
What is a keyhole bridge, and how is it different from a standard bridge?A keyhole bridge has an open, keyhole-shaped gap at the nose instead of a solid bar resting on it. This distributes pressure across the sides of the nose rather than the bridge top, which improves comfort during long wear. Visually, it gives sunglasses a classic, less generic look that works well in vintage-inspired and lifestyle collections. Frames with this design are often simply called keyhole sunglasses.
What does P3 mean in eyewear?P3 is an industry term for a classic rounded frame shape that traces back to U.S. military eyewear specifications. Today it describes rounded, vintage-inspired frames like this one. Buyers searching for P3 sunglasses or vintage round sunglasses are usually looking for exactly this style family, and this rounded square version offers the same character with an easier fit across different face types.
What is the difference between TR90 and acetate in sunglasses?TR90 is a flexible, lightweight thermoplastic commonly used for front frames because it recovers its shape after bending and handles impact well. Acetate is a plant-based plastic with richer color depth and a smoother, more premium hand-feel, which is why it is often used for temples on higher-priced sunglasses. This frame combines both materials to get the benefits of each.
Do polarized lenses also provide UV protection?Polarization and UV protection are two separate features. Polarized lenses filter horizontal glare from reflective surfaces such as wet roads and water, while UV400 lenses block UVA and UVB rays up to 400 nm. This style includes both, so buyers get glare reduction and full-spectrum UV protection in one pair.
What is the MOQ for wholesale orders?The standard MOQ is 50pcs per color and 300pcs per order. Mixed-color orders are supported for the eight stock colorways, and custom Pantone colors start from 300pcs per color.
How long do sampling and bulk production take?Stock samples ship within 7days. After sample approval, standard bulk lead time is 15 days, depending on order quantity and customization scope.
Can I customize colors, logos, and packaging?Yes. Beyond the eight stock colorways, we develop Pantone-matched frame and lens colors, apply logos by laser engraving, pad printing, or metal inlay, and build custom packaging, hang tags, and cases. OEM and ODM projects are both supported.
Request a Quote for Your Eyewear Collection
Request a detailed quotation for this style, including your preferred colorways, branding requirements, and target delivery timeline. As a bulk sunglasses supplier, we support programs from a first sample run to repeat seasonal orders. A no-obligation discussion with our product team covers:
First order or fifteenth reorder, the process is the same: tell us your configuration, and we'll reply with pricing and timelines. Inquiries are welcome at any stage of your planning.
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