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Flexon 603 Eyeglasses - designeroptics.com
Flexon 603 Eyeglasses
Add To Cart For Lowest Price
$102.15
$150.00

You save 32%

Color

Size

ADD PRESCRIPTION

Flexon 603 Eyeglasses

002 - Mat Black / 51

  • Ships within 1 to 5 Days

    Shipping information is provided by the manufacturer.

March_679516658939
ADD PRESCRIPTION
Flexon 603 Eyeglasses Flexon 603 Eyeglasses Flexon 603 Eyeglasses Flexon 603 Eyeglasses Flexon 603 Eyeglasses
Flexon 603 Eyeglasses
Flexon 603 Eyeglasses
Flexon 603 Eyeglasses
Flexon 603 Eyeglasses
Flexon 603 Eyeglasses
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    Free Shipping
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    Price Match
  • Easy Returns
    Easy Returns
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ADD PRESCRIPTION
Add To Cart For Lowest Price
$102.15
$150.00

You save 32%

Color

Size

002 - Mat Black / 51
002 - Mat Black / 49
218 - Coffee / 49
033 - Gunmetal / 49
033 - Gunmetal / 51
218 - Coffee / 51

*Swipe to view more color variants

  • Free Shipping
    Free Shipping
  • Price Match
    Price Match
  • Easy Returns
    Easy Returns
  • Licensed Opticians
    Licensed Opticians
DESCRIPTION RATINGS & REVIEWS PRESCRIPTION GUIDE

The Flexon 603 Eyeglasses combine classic rectangular styling with advanced memory metal technology for unmatched durability and comfort. Crafted from Flexon's proprietary lightweight titanium alloy, these prescription-ready eyeglasses are engineered to flex and return to their original shape, making them virtually indestructible for everyday wear.

Designed specifically for men with round or oval face shapes, the sharp-edged rectangular frame creates a bold, confident look that works equally well in professional or casual settings. The full-rim metal construction features adjustable silicone nose pads for a customized fit, while the single bridge design ensures all-day comfort. Available in four sophisticated colorways—Matte Black Chrome, Coffee, Steel, and Light Gunmetal—with lens widths of 49mm and 51mm to accommodate different face sizes. Temple length options of 140mm and 145mm provide additional fit flexibility.

These Flexon eyeglasses are fully compatible with prescription lenses and come with a clip-on frame option for added versatility. The high-quality stainless steel construction ensures long-lasting performance while maintaining an incredibly lightweight feel.

Product DetailsProduct Details

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Customer Reviews

Based on 31 reviews
94%
(29)
6%
(2)
0%
(0)
0%
(0)
0%
(0)
L
Lawrence Goldman
Same glasses… lower cost

I found glasses I liked at a local Optometrist. I checked online for the same frames, including the measurements, and they were half the price. Ordering was easy and delivery was quite fast.

Y
Yanli Wang

Flexon 603 Eyeglasses

R
Ron Rensink

Well done

C
Cory Koenigsberg

Great

B
Brian Ulmer
Excellent choice

I broke my glasses and this company had some frames on the shelf ready to ship. Thank you very much!

123
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Frequently Asked Questions

Are Flexon 603 eyeglasses prescription-ready?

Yes, the Flexon 603 eyeglasses are fully prescription-ready and compatible with single vision, progressive, and bifocal lenses. The full-rim metal frame construction provides excellent lens retention and stability for all prescription types. You can easily add your prescription during checkout.

Are Flexon 603 eyeglasses prescription-ready?

Yes, the Flexon 603 frames are fully prescription-ready and compatible with single vision, progressive, and bifocal lenses. Our certified optical lab will custom-fit your prescription lenses to these frames during checkout, including options for anti-reflective coatings, blue light protection, and high-index materials for stronger prescriptions.

What is Flexon memory metal and why is it better?

Flexon memory metal is a proprietary titanium alloy that can bend and flex without breaking, then return to its original shape. This makes Flexon 603 eyeglasses incredibly durable and resistant to damage from drops, sits, or accidental bending—perfect for active lifestyles. The material is also hypoallergenic and significantly lighter than traditional metal frames.

What is Flexon memory metal technology?

Flexon frames feature technologically advanced memory metal—a titanium-nickel alloy—in the bridge and temples that allows them to be flexed, bent, or twisted and return to their original shape. This NASA-discovered material makes Flexon eyewear significantly more durable and resistant than conventional metal frames, reducing the need for frequent replacements.

What face shapes work best with Flexon 603 rectangular frames?

The Flexon 603's rectangular shape is ideal for round and oval face shapes, as the angular lines create balance and definition. The sharp-edged rectangular design adds structure to softer facial features. Available in 49mm and 51mm lens widths, you can choose the size that best proportions your face.

What face shapes work best with Flexon 603 rectangular frames?

The Flexon 603's rectangular shape is specifically designed to complement round and oval face shapes by adding definition and structure. The sharp-edged rectangular silhouette creates balance and contrast, making it an excellent choice for those seeking a bold, masculine look that offsets softer facial features.

Do Flexon 603 eyeglasses come with adjustable nose pads?

Yes, the Flexon 603 features adjustable silicone nose pads that can be customized for optimal comfort and fit. These soft nose pads distribute weight evenly, prevent slipping, and can be adjusted by an optician to sit perfectly on your nose bridge, ensuring all-day wearability without pressure marks.

Are the nose pads on Flexon 603 adjustable?

Yes, the Flexon 603 features adjustable silicone nose pads that can be fine-tuned for a custom fit. These soft, nonslip pads ensure the frames sit comfortably on your nose throughout the day and can be adjusted by an optician to accommodate different bridge widths and nose shapes.

What size options are available for Flexon 603 eyeglasses?

The Flexon 603 is available in two lens widths (49mm and 51mm) and two temple lengths (140mm and 145mm) across six different variants. This sizing flexibility ensures a proper fit for various face sizes. The 49mm width suits smaller to medium faces, while the 51mm works better for medium to larger faces.

How durable are Flexon 603 frames compared to regular metal frames?

Flexon 603 frames are significantly more durable than conventional metal eyewear. The memory metal construction is lightweight, corrosion-resistant, and can withstand bending and twisting that would permanently damage standard frames. Many Flexon wearers report using the same frames for over a decade, making them a worthwhile long-term investment.

Can I add a clip-on to Flexon 603 eyeglasses?

Yes, the Flexon 603 is designed with clip-on compatibility, allowing you to easily attach magnetic or clip-on sunglasses for instant sun protection. This feature makes them versatile for both indoor and outdoor use without needing a separate pair of prescription sunglasses.

What sizes are available for the Flexon 603?

The Flexon 603 is available in two lens widths: 49mm and 51mm, both with a 19mm bridge width. The 49mm size offers temple lengths of 140mm or 145mm, while the 51mm size comes with 145mm temples. This range accommodates small to medium face sizes, ensuring a proper fit for most adult wearers.

Compare With Similar Frames

How the Flexon 603 Eyeglasses stacks up against the closest alternatives we carry.

This product
Flexon 603 Eyeglasses
Flexon Flexon 603 Eyeglasses $150.00$102.15
Flexon 600 Eyeglasses - designeroptics.com
Flexon Flexon 600 Eyeglasses $150.00$102.15
  • Slightly more traditional rectangular shape
  • Same memory metal technology and durability
  • Identical price point at $102.15
View frame →
Flexon 607 Eyeglasses - designeroptics.com
Flexon Flexon 607 Eyeglasses $150.00$102.15
  • Same $102.15 price and memory metal construction
  • Rectangular shape suitable for similar face types
  • Full-rim design with adjustable nose pads
View frame →
Flexon 606 Eyeglasses - designeroptics.com
Flexon Flexon 606 Eyeglasses $150.00$96.62
  • Slightly lower starting price at $96.62
  • Available in multiple sizes (51mm, 53mm, 55mm lens widths)
  • Same memory metal flexibility and durability
View frame →
Read the full comparison

Flexon 603 vs. Flexon 600 vs. Flexon 606: Which Rectangular Frame Is Right for You?

If you're considering the Flexon 603, you're likely also evaluating other models in Flexon's core rectangular collection. Here's how the 603 compares to its closest siblings—the Flexon 600, 606, and 607—to help you make the best choice.

Flexon 603 vs. Flexon 600

Both the 603 and 600 are priced identically at $102.15 and feature the same memory metal technology and full-rim construction. The key difference lies in styling: the Flexon 603 offers sharper, more defined rectangular edges for a bolder, more contemporary look, while the 600 presents a slightly softer, more traditional rectangular silhouette. If you prefer modern, angular frames, choose the 603. If you want timeless versatility, the 600 is your frame. Additionally, the 600 is available with an optional clip-on sunglasses attachment, making it ideal for those who want prescription sunglasses without buying a second pair.

Flexon 603 vs. Flexon 606

The Flexon 606 starts at $96.62, making it slightly more affordable than the 603. It also offers more size options (51mm, 53mm, and 55mm lens widths vs. the 603's 49mm and 51mm), which is beneficial for those with larger faces. However, the 606 features an 18mm bridge width compared to the 603's 19mm, which may affect fit depending on your nose shape. Both frames share similar color palettes (Coffee, Gunmetal, Steel), but the 603's sharper rectangular design gives it a more distinctive, fashion-forward edge.

Flexon 603 vs. Flexon 607

The Flexon 607 is priced the same as the 603 at $102.15 and shares the same memory metal durability and adjustable nose pads. The primary distinction is in the temple design and overall frame geometry—the 607 may have slightly different proportions that affect how the frames sit on your face. Both are excellent choices for rectangular frame enthusiasts; your decision may come down to trying on both styles to see which temple design feels more comfortable and looks better with your face shape.

Why Choose the Flexon 603?

The Flexon 603 stands out for its sharp-edged rectangular styling that makes a bold statement while remaining professional enough for any setting. If you have a round or oval face and want frames that add definition and structure, the 603's angular design is specifically engineered for you. Its 19mm bridge and adjustable silicone nose pads ensure a secure, comfortable fit, and the available colorways—Matte Black, Coffee, Steel, and Light Gunmetal—offer versatile options for any wardrobe. For those seeking a modern rectangular frame with proven Flexon durability at a competitive price, the 603 delivers exceptional value.

At a Glance

Flexon 600 Eyeglasses

Pros:

  • Slightly more traditional rectangular shape
  • Same memory metal technology and durability
  • Identical price point at $102.15
  • Available with optional clip-on sunglasses attachment

Cons:

  • Less sharp-edged styling than the 603
  • Fewer color options available
  • May appear more conservative for those seeking bolder frames

Flexon 607 Eyeglasses

Pros:

  • Same $102.15 price and memory metal construction
  • Rectangular shape suitable for similar face types
  • Full-rim design with adjustable nose pads
  • Proven durability and lightweight comfort

Cons:

  • Slightly different temple design may affect fit preference
  • Color selection varies from the 603
  • Frame dimensions may differ slightly

Flexon 606 Eyeglasses

Pros:

  • Slightly lower starting price at $96.62
  • Available in multiple sizes (51mm, 53mm, 55mm lens widths)
  • Same memory metal flexibility and durability
  • Coffee, Steel, and Gunmetal color options

Cons:

  • 18mm bridge width vs. 19mm on the 603 may affect fit
  • Different temple lengths (140mm or 145mm)
  • Slightly less bold rectangular styling

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