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 |
BR | EU | UK |
Foot Length (cm.) |
---|---|---|---|---|
5 | 35 | 37 | 4 | 23.3 |
5.5 | 36 | 38 | 4.5 | 23.8 |
6 | 36.5 | 38.5 | 5 | 24.2 |
6.5 | 37 | 39 | 5.5 | 24.6 |
7 | 37.5 | 39.5 | 6 | 25 |
7.5 | 38 | 40 | 6.5 | 25.4 |
8 | 38.5 | 40.5 | 7 | 25.6 |
8.5 | 39 | 41 | 7.5 | 25.9 |
9 | 39.5 | 41.5 | 8 | 26.3 |
9.5 | 40 | 42 | 8.5 | 26.7 |
10 | 41 | 43 | 9 | 27.1 |
10.5 | 41.5 | 43.5 | 9.5 | 27.6 |
11 | 42 | 44 | 10 | 28.0 |
11.5 | 43 | 45 | 10.5 | 28.4 |
12 | 43.5 | 45.5 | 11 | 28.9 |
12.5 | 44 | 46 | 11.5 | 29.3 |
13 | 45 | 47 | 12 | 29.9 |
Made from the earth. Lighter than air.
You asked for a greener sneaker, we listened.
This time we knit our sneakers from self-regenerating bamboo & recycled plastics from heel to toe. IBI is high performance, low-impact and ultra lightweight. Wearing IBI, you’ll be lighter on your feet and leave behind a smaller footprint.
- Upper & Lining: Perfect-fit Bamboo Knit (bamboo and recycled PET)
- Insole: Removable lightweight memory foam + cork + Mamona oil (& a secret message)
- Outsole: Green EVA made from sugarcane
- Laces: Made with recycled plastics


The DNA of IBI
This is what happens when your sneakers go vegan.

-
Bamboo Knit
Bamboo is harvested from the stalk and rapidly self-generates, leaving tree & soil intact.
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Sugarcane Outsole
Our durable outsoles are made with Green EVA from sugarcane and a negative carbon emissions balance.
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Vegan Insole
Our signature memory foam insole is now made with cork & organic mamona oil.
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Recycled Plastics
IBI’s lining, laces, threads and our logo labels were made from recycled plastic bottles.


Our Sustainability Evolution


Our Sustainability Evolution
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Carbon Neutral Co.
Our goal was to get our carbon footprint to zero impact. We've arrived.
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Dual-Purpose Packaging
We've gone minimalist. Now our sneakers are delivered to your door in one box, which acts as both packaging and your shoe box.
-
Partnership with Soles4Soles
We donate our lightly-used sneakers to Soles4Souls - a nonprofit organization that provides footwear to underserved communities.
#CaughtInCariuma
Show us how you style your IBI sneakers + check out how influencers are already wearing our vegan collection.

You made it to the bottom of the page!
Very impressive. If you're still in the mood to read about our company-wide sustainability initiatives, we've got you covered.