UNDERCUT Polarized
UNDERCUT Polarized Play Icon

UNDERCUT Polarized

Frame Color: Algae Tortoise

Lens Color: Trout Belly Flash

(~19% VLT) | Category 3 | Best for Lowlight & Overcast Conditions

99% Recycled Fishing Nets

$179.00

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30-Day Returns

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Canada & USA

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Undercut Technical Details

Weight

Weight

These things are really light. 1oz light (70% lighter than Rayban Wayfarers)

Undercut Frame Material

Undercut Frame Material

Recycled Nylo. 99% Recycling Fishing Nets.

Curvature

Curvature

Round like the earth. Base 8 curvature means full-wrap and maximum coverage.

Lens Material

Lens Material

Lenses by ZEISS. Sustainable Polyamide. 39% Bio-Based.

Undercut Fit/Size Guide

Undercut Fit/Size Guide

Designed for Smaller and Medium Face Shapes. 63-15-127

Undercut Country of Origin

Undercut Country of Origin

Made in Mauritius. Distributed from Canada and the US. Powered by adventure addicts and fly anglers worldwide.

Lens Treatments

Lens Treatments

More polarizing than your uncle at thanksgiving dinner. Anti Fog. Water Repellant. Anti Reflection.

Lenses by Zeiss, Engineered for Marble

Lenses by Zeiss, Engineered for Marble

Sustainable Polyamide Lens

Lighter than glass, more impact resistant, manufactured with renewable energy and more scratch-proof than PC.

Polarization Efficiency

State of the art polarization cuts glare off water for less eye fatigue, better sight fishing and safer wading

Advanced Coatings

Hydrophobic coating allows for rain and spray to slide off instantly + anti-fog and anti-reflection coatings help you stay lazer

Ansi Z87.1 Rated for impact Resistance.

Make an impact on and off the water

Recycled Fishing Nets

UNDERCUT frames are constructed from 99% Recycled Fishing Nets for a more conscious footprint in and out of the river...

Textured Rubber Nose Grips & Temples

for a secure fit in demanding weather conditions

Base-8 Full Wrap

so they’ll block all light leaks & stay put on your head...

Field-Tested Hard

by 30+ fly anglers across dozens of different water types…

Make an impact on and off the water

Make an impact on and off the water

Recycled Fishing Nets

Textured Rubber Nose Grips & Temples

Base-8 Full Wrap

Field-Tested Hard

Recycled Fishing Nets

UNDERCUT frames are constructed from 99% Recycled Fishing Nets for a more conscious footprint in and out of the river...

Why Fly Anglers Are Switching to Marble

We’re engineered for fly anglers. Not shareholders.

Angler-tuned design
Angler-designed & field tested

Designed with fly anglers; field-tested to read water, cut surface glare, and track line/flies and stay on for long hours fog-free.

Fishing-focused
Outdoor / performance
Offshore focus
Lifestyle / general
Optics — impact resistance
ZEISS, ANSI Z87.1 rated
Not ANSI rated (varies)
Not ANSI rated
Not ANSI rated
Not ANSI rated
Optics — fly-fishing performance
ZEISS Sustainable Polyamide, engineered for fly fishing

All use premium polarized lenses with coatings for water, oil, and glare resistance. Marble’s ZEISS optics offer superior clarity and filtration, purpose-tuned and tested for fly fishing.

Glass / Nylon + Blue Light Filter
ChromaPop™ Polarized Lenses
580G / 580P Polarized Lenses
PolarizedPlus2® Lenses
Transparency in manufacturing
Open supplier disclosure (ZEISS, Plastinax)

We name our partners and materials (e.g., ZEISS sustainable polyamide lenses; Plastinax bio-polymer frames). Public supplier detail from other brands is limited.

No public disclosure
No public disclosure
No public disclosure
No public disclosure
Bio content (frame / lens)
~70% / ~60%
Partial
0% / 0%
~40% / 0%
0% / 0%
Ownership
Independent, angler-founded

Marble is independent and angler-founded. Smith (Safilo), Costa (EssilorLuxottica), and Maui Jim (Kering) are within global groups; Bajío operates independently. Policies and product decisions can reflect ownership structure.

Independent (ex-Costa)
Safilo Group
EssilorLuxottica
Kering Group
Price (USD)

Pricing reflects Marble CHASM vs. Bajío Nato, Smith Guide’s Choice, Costa Reefton Pro, and Maui Jim Keha at the date noted below. Taxes, RX options, and promotions may affect final price.

$179
$240
$255
$290
$320

Comparisons reference Marble CHASM and: Bajío Nato, Smith Guide’s Choice, Costa Reefton Pro, and Maui Jim Keha—premium models commonly used in fly fishing environments. Data is based on publicly available manufacturer materials as of October 2025 and may change.

See Beyond the Catch

Marble Fishing Eyewear bridges premium optical performance and sustainable design for anglers. Featuring ZEISS Sustainable Polyamide Polarized lenses and 99% recycled fishnet frames, UNDERCUT is purpose-built for fly anglers who care about their impact on and off the water. With a slim profile, UNDERCUT sneaks it's way onto many face shapes allowing you to cut glare, sharpen contrast, and help you spot fish in changing light. Field tested across Patagonia, Canada, Iceland and the US by our community of die-hard anglers, these sunglasses deliver the clarity, comfort, and secure fit serious fly fishing demands. Every pair of Marbles supports our mission to reduce fly fishing waste and protect the waters our sport relies on. This is more than polarized fishing sunglasses. Wearing Marble is a commitment to chasing adventure, respecting clean water, and joining a community building a circular future for the sport.

Don't Lose Your Marbles.

Tumbled with love.

Before any pair of Marbles is assembled, its frame components spend over 24 hours tumbling in a drum with wet stones ... smoothing away every edge the mold left behind. It is one of nine steps between raw material and the pair in your hands, and we filmed all of them in Mauritius with our production partner Plastinax.

Learn How Your Marbles Are Made

Trusted by Pro Anglers

How do the UNDERCUTs fit?

Our UNDERCUT frames were designed to fit well on smaller to medium face shapes. The slimmer profile allows the lenses to sit just below the eyebrow line and the recycled fishnet frame material makes for a softer, more supple feel which may mold slightly over time to adapt to your face shape.

Pro tip: Order them. Try them. Return them if they don’t fit (for free)!

Protecting Your Marbles. Protecting Our Fish. Protecting Your Marbles. Protecting Our Fish. Protecting Your Marbles. Protecting Our Fish. Protecting Your Marbles. Protecting Our Fish. Protecting Your Marbles. Protecting Our Fish. Protecting Your Marbles. Protecting Our Fish. Protecting Your Marbles. Protecting Our Fish. Protecting Your Marbles. Protecting Our Fish.

Every pair of UNDERCUT sunglasses comes packaged with intention. The custom tube, designed by artist Sarah Landström, pays homage to the fly rod cases we've carried for generations. It's a functional keepsake — while also built easy to recycle if you already have a hard shell you love. Inside, you'll find a cream pouch made from rPET (recycled bottles), custom stickers and all the information you need to take care of your Marbles.

Frequently Asked Questions

How does recycled fishnet frames differ to bio-based?
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Yes. Both deliver the durability and performance you'd expect from premium fly-fishing eyewear. You may notice the recycled fish-net frames feel slightly less rigid than bio-based. That's the fishnets at work which in the core form are flexible nylon. That bit of flex means the frame is actually harder to snap, absorbing the knocks of a day on the water rather than fighting them.

How do I prevent lens fogging?
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Trick question, you don't need to. Marble lenses have been carefully crafted by Zeiss to ensure fogging is minimal. No one wants to fish in 360p.

What’s the best way to store my Marbles?
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Whenever you wear your Marbles we recommend putting the micro fiber pouch in a pocket. When transiting on long trips and expeditions, throw them in the provided tube and into your duffle or bag. Try to avoid leaving them in extremely hot conditions (ex: ovens, the sun, air-fryers etc.)

Can I use my Marbles in saltwater?
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Does a brown trout eat a midge? Yes. You can use your Marbles on the ocean - just take extra care of the salt. We recommend our Dorado or Green Flash for ocean fishing. Whenever fishing salty environments, try to clean your shades after getting to land as prolonged exposure to salt may damage your frames and lenses.

How should I clean my Marble sunglasses?
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If you smudge your lenses after inhaling a dozen chicken wings, use the included rPET cloth with mild soap and water. When on the river and in the wild, make sure to blow off any dust or debris prior to cleaning. Although our lenses are drop-tested, scratch tested and very durable, micro abrasions are still possible and most common when wiping your lenses with a piece of sand or small rock trapped. Treat your gear well. Don't lose your marbles.

Buy Now icon

Prefer to Shop Local?

Find Marble in these select fly shops:

The Compleat Angler
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Location

Darien, Connecticut

Phone

1-203-655-9400

Website

www.compleatangleronline.com

The Canyon Fly Shop
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Location

Wheat Ridge, Colorado, USA

Phone

(226) 383-3474

Website

https://thecanyonflyshop.com/

Cowboy Drifters
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Location

Casper, Wyoming, USA

Phone

(307) 331-2031

Website

https://wyocowboydrifters.com/

Rainbow River Fly Lodge
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Location

Alaska, USA

Phone

509) 994-8181

Website

https://rainbowriverlodge.com/

The Northern Angler
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Location

Traverse City, Michigan

Phone

231) 933-4730

Website

www.thenorthernangler.com

HighWater Tackle
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Location

North Vancouver, BC, Canada

Phone
Website

https://highwatertackle.com

Harbour Chandler
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Location

Nanaimo, BC

Phone

+1 250-753-2425

Website

https://www.harbourchandler.ca

Kimberley Fly Fishing Ltd
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Location

Kimberley, Bc

Phone

250-427-2278

Website

www.kimberleyflyfishing.com

Fish Tales Fly Shop
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Location

Calgary, AB, Canada

Phone

403 640-1273

Website

https://fishtalesflyshop.com/

Michael & Young
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Location

Vancouver, BC, Canada

Phone

604-588-2833

Website

https://myflyshop.com/

Campbell River Fly Shop
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Location

Campbell River, BC

Phone

778-346-0040

Website

https://www.campbellriverflyshop.ca/

Boutique Salmo Nature
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Location

Montréal, Canada

Phone

514-871-8447

Website

www.salmonature.com

Reid's Fly Shop
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Location

Edmonton, Alberta, Canada

Phone

587-414-6554

Website

https://www.reidsflyshop.ca/

Chile Trout
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Location

Coyhaique, Chile

Website

www.chiletrout.com