Add to cart Why Do We Field Test?
Our Product Gets Better
Guides fish hard, in real conditions. Their feedback shapes how we refine frame fit, lens performance, and durability — before anything goes to market.
Sample Frames Don't Go to Waste
Every prototype should find a river. Rather than letting test frames sit on a shelf, we put them in hands that'll use them hard and report back honestly.
Trust Is Built in the Field
We're not a heritage brand with decades of credibility. We earn it the right way — by putting our gear with people who depend on theirs.
Meet Some of The Anglers Testing Marble
Here are some of the 35 field-testers who have helped Marble hone in on the best fly fishing glasses in the game. These awesome anglers dream about fish, live on the water and can't afford gear that fails.
Magnús Stefánsson
Pro
Alexis Pageau
@alexis.pageau
Jordan Linger
Whistler Fishing Guides
Eric Braker
Brakerbros
Esteban
@TaigaWildProductions
Teddy Cosco
@Castandiron
Kalli Fisk
Tester
Gonzalo Bruna
Into The Wild Patagonia
Kastine Coleman
Eric
@BlingMidge
Ian Silver
Dirty Verde Outfitters
This Isn't a Free Gear Program. It's a Partnership.
Fish Hard
Testers take frames into their actual guide season. We want real-condition data, not curated reviews.
Frequently Asked Questions
Who qualifies?
Working guides, outfitters, and fly shop staff with a meaningful number of days on the water. We prioritize professional feedback, not social reach.
Do testers keep the frames?
Yes! One of the secondary reasons for our program is to make sure no "samples" we go through get wasted and find some life on the water. Whatever you recieve to test and fish with is yours to keep.
How many active testers are there?
We currently have over 30 field testers in our network and hope to grow this number so Marble Fishing Sunglasses get tested by anglers all over the world!
What water types are you looking for?
All water with fish is good water, the importance for us is that you designate where you will be fishing. Flats? Creeks? Salmon rivers? Canyons? The more we know about what our sunglasses go through the better.
How does feedback influence the product?
Every piece of feedback on lens clarity, polarization, coatings, colour, glare etc. is pertinent to the waters they we're tested in. We take all this feedback to the drawing board and implement it as we work with ZEISS to make new lenses for future pairs.
