Ray-Ban 4439D Sunglasses
Ray-Ban 4439D Sunglasses
$128.00

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Ray-Ban 4439D Sunglasses

667587 - Grey - Dark Grey

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DESCRIPTION RATINGS & REVIEWS PRESCRIPTION GUIDE

The Ray-Ban RB4439D sunglasses bring a fresh take on square frames, blending retro-inspired design with modern comfort. Built from lightweight propionate, these full-rim frames feature a squared front and a unique beveled top bar accented by dual metal rivets at the edges—a geometric detail that sets them apart from standard square styles.

Low Bridge Fit for All-Day Comfort

The RB4439D is designed with Ray-Ban's low bridge fit, engineered specifically for faces with lower nose bridges and higher cheekbones. If you've struggled with sunglasses that slide down your nose, sit too low, or press uncomfortably on your temples or cheeks, this fit addresses those issues. The reduced pantoscopic tilt and modified nose bridge create a secure, balanced fit that stays in place without constant adjustment.

Measuring 54mm lens width, 21mm bridge, and 145mm temple length, the RB4439D offers standard coverage with unisex appeal. The flat lenses and clean lines work equally well on oval and round face shapes.

Prescription-Ready & UV Protection

These frames are prescription-ready, so you can add your Rx lenses for everyday wear. All lens options include 100% UV protection to shield your eyes from harmful rays. The collection includes polarized variants (like the 901/9A in dark green polarized) that eliminate nearly 100% of surface glare—ideal for driving, water activities, or bright outdoor conditions.

Available in seven color combinations: transparent grey with dark grey lenses, opal brown with dark brown, classic black with dark grey, black with dark green polarized, black with light blue, black with ochre, and tortoise with dark grey. The signature Ray-Ban logo appears on both the left lens and the temples.

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Frequently Asked Questions

Are Ray-Ban 4439D sunglasses prescription-ready?

Yes, the Ray-Ban RB4439D sunglasses are prescription-ready. The full-rim propionate frames can accommodate prescription lenses, including single-vision and progressive options. The frame's 54mm lens width and 39.6mm lens height provide enough vertical space for most prescriptions.

What is low bridge fit and who should wear it?

Low bridge fit sunglasses are designed for people with low nose bridges and higher cheekbones. The RB4439D features reduced pantoscopic tilt and a modified bridge that prevents the frames from sliding down your nose, sitting too low on your face, or pressing on your temples and cheeks. This fit is ideal if standard frames feel uncomfortable or don't stay in place.

What are the measurements of the Ray-Ban 4439D?

The Ray-Ban RB4439D measures 54mm lens width, 21mm bridge width, and 145mm temple length (54-21-145). The lens height is 39.6mm, providing standard coverage. These dimensions make it a medium-sized frame suitable for most adult face shapes, particularly oval and round faces.

Do the Ray-Ban 4439D sunglasses come with UV protection?

Yes, all Ray-Ban RB4439D sunglasses include lenses coated with 100% UV protection to shield your eyes from harmful UVA and UVB rays. Select variants also feature polarized lenses (such as the 901/9A dark green polarized option) that remove nearly 100% of surface glare for enhanced visual clarity.

What material are the Ray-Ban 4439D frames made from?

The RB4439D frames are made from propionate, a durable and flexible plastic material that's lightweight and comfortable for all-day wear. Propionate is known for its resilience and ability to hold its shape over time, making it a popular choice for premium eyewear frames.

How does the Ray-Ban 4439D fit compared to standard square frames?

The RB4439D features a low bridge fit, which differs from standard frames in four key ways: reduced pantoscopic tilt, modified nose bridge height, adjusted temple angles, and optimized cheek clearance. This design prevents the common issues of frames sliding down, sitting too low, or creating pressure points on the temples or cheeks that many people experience with standard-fit sunglasses.

Compare With Similar Frames

How the Ray-Ban 4439D Sunglasses stacks up against the closest alternatives we carry.

Read the full comparison

Ray-Ban 4439D vs Similar Square Frames

If you're considering the Ray-Ban RB4439D, you're likely drawn to modern square frames with a retro edge. Here's how it compares to three popular alternatives in our collection.

RB4439D vs Ray-Ban Justin 4165

The Justin 4165 is Ray-Ban's bestselling square frame, and it shares the RB4439D's propionate construction and prescription-ready design. The key difference? Fit. The Justin uses a standard bridge fit, while the 4439D is engineered specifically for low nose bridges and higher cheekbones. If you've found that the Justin slides down your nose or sits too low, the 4439D solves that problem. The 4439D also features a distinctive beveled top bar with dual rivets that gives it a more architectural look. The Justin starts at $98, making it more budget-friendly, but if fit is your priority, the 4439D's low bridge design is worth the investment.

RB4439D vs Ray-Ban Bill 2198

The Bill 2198 shares the RB4439D's modern, geometric aesthetic—both frames feature beveled details and contemporary square shapes. They're priced similarly ($125-$244 for the Bill vs $160-$197 for the 4439D) and both are prescription-ready. The deciding factor is fit: the Bill 2198 uses a standard bridge, while the 4439D's low bridge fit prevents slipping and pressure points. If you have a higher nose bridge, the Bill might work fine. If you need low bridge accommodation, the 4439D is the better choice.

RB4439D vs Ray-Ban Square 1971

The Square 1971 is Ray-Ban's vintage-inspired square frame, and it shares the 4439D's retro-modern vibe. The major difference is material: the 1971 uses metal construction, while the 4439D is propionate. Metal frames feel lighter and more delicate; propionate is more durable and flexible. The 1971 also uses a standard fit, so it won't provide the low bridge accommodation of the 4439D. If you want metal and don't need low bridge fit, the 1971 is a great option. If you prefer the warmth of plastic frames and need a better fit for your face shape, the 4439D delivers.

Our take: The Ray-Ban RB4439D stands out in this group for one reason—low bridge fit. If you've struggled with sunglasses that don't sit right, this frame is engineered to solve that problem. The beveled top bar and dual rivets also give it a distinctive look that sets it apart from standard square frames. For customers who need low bridge accommodation, the 4439D is the clear winner.

At a Glance

Ray-Ban Justin 4165 Sunglasses

Pros:

  • Lower starting price ($98 vs $160)
  • More color and lens options available
  • Iconic, widely recognized style
  • Rubber temple tips for extra grip

Cons:

  • Standard fit may not work for low nose bridges
  • Lacks the distinctive beveled top bar detail
  • No low bridge fit option in this model

Ray-Ban Bill 2198 Sunglasses

Pros:

  • Similar modern square aesthetic
  • Comparable price range ($125.68-$244)
  • Prescription-ready construction
  • Unique beveled frame design

Cons:

  • Standard fit, not optimized for low bridges
  • Different frame proportions may not suit all faces
  • Less unisex appeal than the 4439D

Ray-Ban Square 1971 Sunglasses

Pros:

  • Similar retro-modern square design
  • Comparable price range ($117.94-$207)
  • Prescription-ready frames
  • Iconic vintage-inspired styling

Cons:

  • Standard fit without low bridge accommodation
  • Metal construction vs propionate (different weight/feel)
  • Lacks the beveled top bar and rivet details

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