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The Flexon LARSEN 600 eyeglasses bring together clean rectangular styling and the brand's proven memory metal technology in a frame built for everyday reliability. Available in three versatile finishes—Brown, Dark Slate Blue, and Gunmetal—these full-rim metal frames are designed for men who need prescription eyewear that can keep up with an active lifestyle.
Memory Metal That Bounces Back
What sets the LARSEN 600 apart is Flexon's proprietary memory metal construction in both the bridge and temples. This titanium-nickel alloy allows the frame to flex, bend, and twist well beyond what conventional metal frames can handle, then return to its original shape. If you've ever sat on your glasses or accidentally bent them while taking them off, you know how valuable this resilience is. The memory metal technology means fewer trips to the optician for adjustments and a frame that maintains its fit over time.
The full-rim rectangular shape offers maximum lens stability and works particularly well for round or oval face shapes, adding structure and definition. At 55mm or 57mm lens width (depending on size), the LARSEN 600 provides a medium fit that suits most adult men. The 18mm bridge and 145mm temples are proportioned for all-day comfort without pressure points.
Prescription-Ready and Built to Last
These frames are fully prescription-ready and compatible with single-vision, bifocal, and progressive lenses. The adjustable nose pads let you fine-tune the fit to your face, ensuring the optical center sits exactly where it should. The stainless steel construction keeps weight down—Flexon frames are notably lighter than traditional metal frames—while the memory metal components add durability where it matters most.
The LARSEN 600 takes a minimalist approach to temple design, with clean lines and subtle Flexon branding rather than heavy embellishments. It's a professional look that works equally well in the office or on the weekend. The gunmetal finish offers a modern matte aesthetic, while the brown and dark slate blue options provide warmer, more distinctive alternatives to standard black frames.
Whether you're replacing a broken pair or upgrading to more durable eyewear, the Flexon LARSEN 600 delivers the combination of flexibility, lightweight comfort, and straightforward style that has made Flexon a trusted name in prescription eyewear for over three decades.
Product Details
Product DetailsModel
FLEXON LARSEN 600Shape
Gender
Material
Bridge Type
Rim Type
Age Group
Color Details
Color DetailsFrame Color
BrownColor Code
210Color Description
Brown
Frame Color
BlueColor Code
412Color Description
Dark Slate Blue
Frame Color
GunmetalColor Code
033Color Description
Gunmetal
Frame Color
BrownColor Code
210Color Description
Brown
Frame Color
GunmetalColor Code
033Color Description
Gunmetal
Frame Color
BlueColor Code
412Color Description
Dark Slate Blue
Size Details
Size DetailsLens Width
57mmBridge Width
18mmSize
5718
Lens Width
57mmBridge Width
18mmSize
5718
Lens Width
55mmBridge Width
18mmSize
5518
Lens Width
55mmBridge Width
18mmSize
5518
Lens Width
57mmBridge Width
18mmSize
5718
Lens Width
55mmBridge Width
18mmSize
5518
Flexon LARSEN 600 Eyeglasses
Got the frames to replace the same that broke at the bridge. Easily transfered lenses over
Just what I ordered
I am very satisfied with my recent purchase.
Flexon FLEXON LARSEN 600 Eyeglasses
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Frequently Asked Questions
Are Flexon LARSEN 600 frames compatible with progressive lenses?
Yes, the Flexon LARSEN 600 is fully compatible with progressive lenses. The full-rim rectangular design provides sufficient vertical lens height to accommodate the progressive corridor, and the adjustable nose pads allow precise positioning to ensure the optical zones align correctly with your eyes. These frames work well with single-vision, bifocal, and progressive prescriptions.
What is Flexon memory metal and how does it work?
Flexon memory metal is a titanium-nickel alloy that allows eyeglass frames to bend, flex, and twist beyond normal limits, then return to their original shape. The LARSEN 600 features this memory metal in both the bridge and temples, making the frames highly resistant to damage from accidental bending or sitting on them. This technology has been proven reliable since Marchon introduced it in the 1990s.
What face shapes work best with rectangular frames like the LARSEN 600?
Rectangular frames like the LARSEN 600 work particularly well for round and oval face shapes, as the angular lines add structure and definition. The straight horizontal lines help balance softer facial features. If you have a square or rectangular face, you may prefer rounder frame shapes, though personal style always takes precedence over strict face-shape rules.
Can I adjust the nose pads on Flexon LARSEN 600 frames myself?
Yes, the adjustable nose pads on the LARSEN 600 can be fine-tuned at home for a better fit. You can gently push the pads closer together if your glasses slip down, or spread them apart if they feel too tight. However, avoid attempting to bend the memory metal bridge or temples themselves—these areas are designed to resist adjustment and should only be modified by an optician if needed.
How much do Flexon LARSEN 600 frames weigh?
Flexon frames are notably lightweight due to their titanium-based memory metal construction. While the exact weight varies by size, the LARSEN 600's stainless steel and memory metal combination puts less stress and pressure on your temples, ears, and nose bridge compared to conventional metal frames. This lightweight design is one of the key comfort benefits customers consistently mention in reviews.
What sizes are available for the Flexon LARSEN 600?
The LARSEN 600 is available in two sizes: 55-18-145 and 57-18-145. The first number is the lens width (55mm or 57mm), the second is the bridge width (18mm), and the third is the temple length (145mm). Both sizes offer a medium fit suitable for most adult men. The 55mm works well for smaller to average faces, while the 57mm suits average to larger face widths.
Compare With Similar Frames
How the Flexon LARSEN 600 Eyeglasses stacks up against the closest alternatives we carry.
- Same memory metal technology and durability
- Identical price range
- Similar rectangular shape and sizing options
- Distinctive embossed brick pattern adds visual interest
- Four color options vs. LARSEN's three
- Progressive-friendly modified rectangle shape
Read the full comparison
Flexon LARSEN 600 vs. EINSTEIN 600 vs. NATHANIEL 600
All three models belong to Flexon's 600 collection and share the brand's signature memory metal technology, but they differ in design philosophy and details. If you're deciding between these rectangular men's frames, here's what sets them apart.
LARSEN 600: The Minimalist Choice
The LARSEN 600 takes a clean, understated approach with minimal temple detailing and a focus on simplicity. It's the best choice if you prefer eyewear that doesn't call attention to itself—professional, versatile, and easy to wear with any outfit. Available in three finishes (Brown, Dark Slate Blue, Gunmetal) and two sizes (55mm and 57mm lens width).
EINSTEIN 600: The Classic Alternative
The EINSTEIN 600 offers a similar rectangular shape and memory metal construction at the same price point. While specific design details vary, it's a direct style alternative within the same collection. If the LARSEN's color options don't appeal to you, the EINSTEIN may offer different finishes worth considering.
NATHANIEL 600: The Detailed Option
Part of Flexon's Heritage Collection, the NATHANIEL 600 features an embossed rectangular-brick pattern on the temples in contrasting shiny and matte finishes. This added detail gives the frame more visual interest and a slightly dressier look. It's available in four colors (Dark Brown, Dark Gunmetal, Navy, Slate) but in slightly smaller sizes (52mm and 54mm lens width), making it better suited for smaller to average face widths.
Our Recommendation
Choose the LARSEN 600 if you want the cleanest, most versatile look with medium sizing that fits most faces. Its minimalist design works equally well in professional and casual settings, and the three color options cover the essential neutrals. The 55mm and 57mm sizing also provides more flexibility for average to larger face widths compared to the NATHANIEL's smaller dimensions.
At a Glance
Flexon EINSTEIN 600 Eyeglasses
Pros:
- Same memory metal technology and durability
- Identical price range
- Similar rectangular shape and sizing options
Cons:
- Less minimalist—may have more temple detailing
- Fewer color options than LARSEN 600
Flexon NATHANIEL 600 Eyeglasses
Pros:
- Distinctive embossed brick pattern adds visual interest
- Four color options vs. LARSEN's three
- Progressive-friendly modified rectangle shape
Cons:
- More decorative styling may not suit minimalist preferences
- Slightly different sizing (52mm and 54mm vs. 55mm and 57mm)