Sunglasses
Earthglasses
We are, by definition, slow fashion: classically California eyewear created with a conscience and ethical approach. But there’s always more we can do…so it’s time to level up. We’re excited to launch our first GREEN Collection with the introduction of an innovative, sustainable acetate called M49 that is bio-based and biodegradable.
Garrett Leight eco-friendly bio-acetate Carrol square glasses
Bio Army Tortoise
Bio Army Tortoise
Bio Blonde Tortoise
Bio Blonde Tortoise
Bio Deep Olive
Bio Deep Olive
Bio Rose
Bio Rose
Bio Spotted Tortoise
Bio Spotted Tortoise
CARROL
$355
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Garrett Leight eco-friendly Woodlawn geometric metal glasses
Bio Hopps Tortoise-Brushed Silver
Bio Hopps Tortoise-Brushed Silver
Bio Marigold Tortoise-Brushed Gold
Bio Marigold Tortoise-Brushed Gold
Bio Tiger Eye-Gold
Bio Tiger Eye-Gold
WOODLAWN
$385
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What is Bio-Plastic?
Bioplastics can be divided into three main groups: partially bio-based, biodegradable even if from fossil resources, or bio-based and biodegradable. M49 is both bio-based and biodegradable. 

You Said...Biodegradable? Yes! Within 115 days of incubation, the degree of bio-degradation of our M49 acetate exceeds 90%, which surpasses the International Organization for Standardization’s definition of biodegradable. 
GLCO sustainable bio-acetate Carlton round sunglasses
Bio Army Tortoise
Bio Army Tortoise
Bio Beige Crystal
Bio Beige Crystal
Bio Blonde Tortoise
Bio Blonde Tortoise
Bio Spotted Tortoise
Bio Spotted Tortoise
Bio Smoke
Bio Smoke
CARLTON SUN
$385
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Garrett Leight eco-friendly bio-acetate Carlton round sunglasses
Bio Army Tortoise
Bio Army Tortoise
Bio Beige Crystal
Bio Beige Crystal
Bio Blonde Tortoise
Bio Blonde Tortoise
Bio Spotted Tortoise
Bio Spotted Tortoise
Bio Smoke
Bio Smoke
CARLTON SUN
$385
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What Exactly is M49?
M49 is a bioplastic made up of cellulose acetate and a plasticizer of vegetable origin, meaning it’s predominantly composed of materials from renewable sources. Our bio-acetate reduces its impact on the environment — M49 produces 60% less CO2 than traditional plastics and consumes 53% less energy than industry standards.
Garrett Leight California Optical eco-friendly Carlton sunglasses
Garrett Leight California Optical eco-friendly Carlton sunglasses
More than just a pretty frame.
This new bio-acetate is part of a larger ongoing design method of using sustainable materials: the cleaning cloth is made from 80% recycled plastic bottles, the case itself is made from animal-free suede, and the case wrapper is made from FSC-certified recycled paper.

Shop the GREEN Collection