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
The Cariuma x 4ocean sneaker charts a new course for our lowest-impact sneaker—this soft, sock-like IBI upper is knit using 100% recycled plastics, coupled with a featherweight sugarcane EVA outsole. For every pair sold*, 4ocean’s professional captains + crews will remove 2lbs of trash from our oceans and coastlines.
*This item is made-to-order. No returns or exchanges.
- Upper & Lining: Perfect-fit, GRS-certified rPET Knit (from recycled plastics)
- Insole: Removable lightweight memory foam + cork + mamona oil (debossed with the 4ocean logo)
- Outsole: Green EVA made from sugarcane
- Laces: Made with recycled plastics
Our IBI upper is knit for a breathable, sock-like fit.
Our durable outsoles are made with Green EVA from sugarcane and a negative carbon emissions balance.
Our signature memory foam insole, made with cork and mamona oil, is debossed with Cariuma and 4ocean logo.
IBI’s lining, laces, threads and our logo labels were made from recycled plastic bottles.