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Lush as the Brazilian rainforest, bold like a parakeet’s feathers—Greenbriar is our homage to the flora and fauna that inspire our mission.
Handcrafted using a robust organic cotton canvas, the OCA Low Canvas exists at the intersection of functionality and style. With our 100% vegan insoles – made from cork and organic mamona oil – these sneakers ensure optimal comfort and a perfect fit. OCA Low boasts a unique cap toe design and a fully-stitched rubber outsole, for a lightweight yet durable shoe with an extended lifespan.
Shop the Men's OCA Low Pantone Greenbriar Canvas Contrast Thread Sneaker
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Our mission is to help restore the biodiversity and carbon-capturing potential of rainforests.
Since June 2020, we’ve committed to planting two trees for every pair of sneakers we sell. Our work starts in the Brazilian rainforest, where only 12.4% of the forest floor remains following widespread urbanization and agricultural logging. With the goal of restoring biological diversity in this essential biome, we plant over 120 tree species, based on what’s native to each site.
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Upper: Cotton canvas
Lining: Cotton canvas
Sole: 100% slip-resistant rubber
Insole: Mamona oil bio based cork insert
Laces: Made with recycled plastics + organic cotton, with debossed metal aglets
Construction: Handmade vulcanized sneaker; fully stitched outsole -
We’ve extended our return window to 60 days! Returns and exchanges are accepted if your sneakers are:
- Unworn
- Unwashed
- In the original packaging
For more information on our return & exchange policy, read our FAQ here. -
Customer Reviews
Based on 9351 reviews83%(7770)13%(1175)2%(218)1%(99)1%(89)CFit: True to sizeI have walked 6 miles in these shoes and my feet feel great!
CFit: True to sizeA nice clean looking and very comfortable shoe to throw on for many occasions.
LFit: True to sizeThese are my second pair. The first pair are white. Love Snoopy so much. The shoes as usual are super comfortable. I wear these for up to 10 hours regularly.
Men's Size Guide
- Our sneakers run true to size
- If your shoe size varies (for example, sometimes you're an 8, sometimes you're an 8.5) we recommend sizing up
USA Men |
UK | EU | BR |
Foot Length (cm.) |
---|---|---|---|---|
5 | 4 | 37 | 35 | 23.3 |
5.5 | 4.5 | 38 | 36 | 23.8 |
6 | 5 | 38.5 | 36.5 | 24.2 |
6.5 | 5.5 | 39 | 37 | 24.6 |
7 | 6 | 39.5 | 37.5 | 25 |
7.5 | 6.5 | 40 | 38 | 25.4 |
8 | 7 | 40.5 | 38.5 | 25.6 |
8.5 | 7.5 | 41 | 39 | 25.9 |
9 | 8 | 41.5 | 39.5 | 26.3 |
9.5 | 8.5 | 42 | 40 | 26.7 |
10 | 9 | 43 | 41 | 27.1 |
10.5 | 9.5 | 43.5 | 41.5 | 27.6 |
11 | 10 | 44 | 42 | 28.0 |
11.5 | 10.5 | 45 | 43 | 28.4 |
12 | 11 | 45.5 | 43.5 | 28.9 |
12.5 | 11.5 | 46 | 44 | 29.3 |
13 | 12 | 47 | 45 | 29.9 |
The DNA of OCA Low
Old-school sneaker. New-school ethics.




Get a Pair of Sneakers, Plant 2 Trees
Nurturing the planet is a cause that’s very dear to us at Cariuma. That’s why we decided to start our own Reforestation Program in our founders’ homeland, Brazil, where the rainforests are home to an increasing number of endangered plants & animals. For every pair of sustainable sneakers purchased, we plant a pair of trees in the Brazilian rainforest to directly aid in the restoration and preservation of these natural habitats.
