4-layers of protection

Inner Fabric

Heavy Absorption Pad

Leak Proof Fabric

Outer Fabric

We care about transparency

All of our underwear is safe.

Since day one, REVOL has always paid incredibly close attention to the quality of the fabrics we use. Every single one of our fabrics are tested and certified. We wouldn't even consider anything less for our customers - and our team! It is incredibly important to us that we never use anything that has the potential to cause harm.

We have been tested by an outside source (so zero bias as we did not hire the laboratory to do the testing) called Mamavation, that test many of the leading brands, and we were found to have ZERO trace of PFAS. . You can see the lab results here.

Find a copy of the lab results at the bottom of this page!

Below is a breakdown of every one of our fabrics and their certifications.

1. Inner fabric (touches body) - Bamboo - OEKO-TEX STANDARD 100 certified (pg 25). 

2. Heavy Absorption Pad fabric (underneath, not visible) - Bamboo and Organic Cotton - CPSIA certified, plus organic yarns used are GOTS certified, California Proposition 65 approved (this is required as the fabric is made in the US).

3. Leak Proof fabric (middle layer, not visible) - Laminated Organic Cotton. Tested for optimal breathability and leak resistance. Certified OEKO-TEX STANDARD 100 certified (pg 25). 


This fabric uses a unique process that permanently melt-bonds a specially-treated TPU film (the leak-proof layer) to the fabric without the use of toxic solvents or glue. The process emits no toxic waste or VOCs that are harmful to the environment and/or the wearer.

4. Outer fabric (same as inner) - Bamboo - OEKO-TEX STANDARD 100 certified (pg 25). 


As we grow, our core value is to maintain quality and transparency, meaning we will never consider using toxic or non-certified fabrics, as we eventually move our production into overseas manufacturing! Period proof underwear is such an amazing and necessary product for all menstruators, and it should never be something that causes harm.

If you have any other questions, please feel free to get in touch any time!

Mamavation Galbraith Lab Results PFAS FREE