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Polarized Eyewear for Fly Fishing — CHASM
Here's Where our Testing Happened.
Tested on the Water. Trusted in the Wild.
Marble’s eyewear isn’t just designed in the field — it’s tested there. Our community of die-hard anglers pushed our specs in high-glare surf, foggy forests, fast-flowing glacial rivers, and tannin-stained backwaters.
Eco-Conscious Materials
What Makes CHASM Special?
Sustainable Build
Frames made from 58% bio-based materials, lenses with 50% fewer carbon emissions.
Featherweight Balance
Designed to be your new eyes, CHASM features a full wrap design that effortlessly floats on all face shapes and fits with your favorite fishing cap.
Water & Fog Resistant
Zeiss Polarized lenses, treated and tested for river glare, wet and humid conditions.
Guide-Tested Performance
Designed by and for fly anglers, with field feedback from 15+ guides across Canada and the US.
Custom Eco Packaging
Includes rPET cloth + pouch, in partnership with Keep Fish Wet. Comes inside a trout pattern “tube,” design by artist Sarah Landström.
Technical Details
Weight
These things are really light. 1oz light (70% lighter than Rayban Wayfarers)
Frame Material
Bio-based Grilamid TR90 frame (58% bio-based)
Curvature
Round like the earth. Base 8 curvature means full-wrap and maximum coverage.
Lens Material
Lenses by ZEISS. Sustainable Polyamide. 39% Bio-Based.
Lens Treatments
More polarizing than your uncle at thanksgiving dinner. Anti Fog. Water Repellant. Anti Reflection.
Fit/Size Guide
Designed and weighted to fit most face shapes. 61-13-131
Country of Origin
Made in Mauritius. Distributed from Canada. Powered by the North American Fly Fishing community.
Our Lenses Are No Joke
100% UV Protection
Water-Repellant Lens Tech
Anti-Fog Coatings
Lightweight Polyamide
Base-8 Wrap for Maximum Field of View
ANSI Z87.1 Rated for Maximum Impact Resistance
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 envirenments. Data is based on publicly available manufacturer materials as of October 2025 and may change.
See Beyond the Catch
Marble Eyewear bridges premium optical performance and sustainable design for anglers. With ZEISS polarized lenses and ultra-light bio-based frames, CHASM is purpose-built to cut glare, sharpen contrast, help you spot fish and read currents in changing light (without added weight). Field tested on 20+ rivers by fly anglers and guides across North America, these sunglasses deliver the clarity, comfort, and secure fit serious fly fishing demands. Each pair supports Marble’s mission to reduce fly fishing waste and protect the waters our sport relies on. CHASM is not yet made from recycled fly line; it exists to accelerate our line recycling network that should power future circular eyewear and gear for our sport. This is more than polarized fishing sunglasses. It is a commitment to clean water, a step toward a circular future, and a piece of gear you will trust on and off the river.
Don’t Lose Your Marbles.
Marble CHASM Gallery
Trusted by Fly Anglers Across The Continent
"Price-to-quality is unreal, they’re genuinely the first pair of fishing glasses I’ve actually cared to protect. I also got hit by a massive streamer in the eye and I lived to tell the tale with both eyes intact and no scratch on the lenses ... super rad."
Gary Lewis
Fly Angler, Outdoor Filmmaker (Hook & Anvil)
“Already recommended them to other anglers. I love that the company recycles fly-line. The Zeiss lenses are top-notch in low light and the performance keeps surprising me.”
Kastine Coleman
Angler, Guide, Show host
“The construction feels rock solid. The frames hug your face, block glare from the sides, and stay in place even while moving. Very legit performance.”
Josh McFaddin
Outdoor Adventurer and Wild Food Creator
“Really light frames, and overall solid on-water performance. Impressive for a new brand.”
Kalli Fisk
Fly Angler and Hunter
“The lenses I field-tested exceeded my expectations - great visibility, full sun protection, and a wrap design that cuts glare better than pricier brands I’ve used. Very impressed.”
Eric Helfrich
Fly Angler & Guide
“Super comfortable even after hours on the water. The curve of the arms made them feel snug without side pressure. I think are great for guides putting in long hours on the river.”
Sarah Landström
Artist, Fly Angler
“I used them a fair amount and they still look new. Super clear on the water, great for sight fishing. I found them pretty lightweight and no pressure on the nose or ears, which was nice.”
Enzo Rakoto
Guide & Competition Angler
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 Chasm 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 pouch and cleaning cloth made from rPET (recycled bottles), created in partnership with Keep Fish Wet. Printed directly on the cloth are the steps for better catch-and-release fishing — a reminder that keeping your gear clean and keeping fish wet go hand in hand.
Frequently Asked Questions
Is this model made out of recycled fish line?
Our CHASM model is not made out of recycled fly-line just yet, as we are building out the logistics and supply-chain to upcycle the materials we have collected into future products. Our frames and lenses are made from bio-based plastics to offer a more environmentally friendly alternative to the premium optics available on the market while our packaging has been designed to be recyclable and low impact. We're actively working to integrate recycled fishing line into future gear.
What is the difference between Morning Rise & Trout Belly Flash
Both Morning Rise and Trout Belly Flash share the same light amber base tint, which enhances contrast and makes it easier to track fish and read the water. The difference is in the lens finish: Morning Rise: a clean amber lens without a mirror finish — ideal if you prefer a more subtle look and direct amber view. Trout Belly Flash: the same amber lens topped with a special yet subtle mirror coating without obstructing and altering the natural amber view beneath. Both lenses deliver identical core optics, it mainly comes down to whether you want a non-mirrored or mirrored style on the water.
How should I clean my Marble sunglasses?
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.
Can I use my Marbles in saltwater?
Does a brown trout eat a midge? Yes. You can use your Marbles on the ocean - just take extra care of the salt. Marble CHASM was designed with in-land fishing in mind. Whenever fishing salty environments, try to clean your shades after getting to land as prolonged exposure to salt may damage your frames and lenses.
What’s the best way to store my Marbles?
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.)
How do I prevent lens fogging?
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.
Prefer to Shop Local?
Find Marble in these select fly shops:
Salmo Nature
Location
Montréal, QC
Phone
514 871-8447
Website
https://salmonature.com/
HighWater Tackle
Location
North Vancouver
Phone
(555) 555-5555
Website
https://highwatertackle.example
Michael & Young
Location
British Colombia, Canada
Phone
604-588-2833
Website
https://myflyshop.com/
Fish Tales Fly Shop
Location
Calgary, Canada
Phone
403 640-1273
Website
https://fishtalesflyshop.com/
Nile Creek Fly Shop
Location
Vancouver Island, Canada
Phone
250-757-2095
Website
https://nilecreekfly-shop.com/
Kimberley Fly Fishing
Location
Kimberley, BC
Phone
(250) 420-7886
Website
https://www.kimberleyflyfishing.com/
Grand River Outfitting & Fly Shop
Location
Fergus, Ontario
Phone
(226) 383-3474
Website
https://www.ontarioflyfishing.ca/