Introducing the world’s first Biodegradable
Period and Pee-proof Briefs

Biodegradable means that in the right conditions and presence of microorganisms, or bacteria, the garment will eventually break down to its basic components and blend back into the earth, thereby avoiding pollution. We have used a combination of natural textiles and bioengineered synthetic textiles that have been scientifically proven to break down into non-toxic substances at their end-of-life and when they are eventually thrown away, thus reducing waste and pollution. 

The underwear is 97% biodegradable. The waist and leg elastic contain a small amount (less than 3% of the total garment) of elastane that is not biodegradable. The tiny amount of elastane will eventually degrade however it will take a longer time than the rest of the garment. You will be able to see the garment start biodegrading in active soil within weeks, however, the elastane will take up to 3-5 years. 

When your underwear arrives it will come in a FSC recycled kraft envelope and compostable satchel both which are 100% biodegradable. 

This depends on the care of the product. It will last the same amount of time as our original Modibodi® underwear if you follow the suggested care instructions.  We’ve lab tested the brief to maintain quality for at least 100 washes, but many of our customers have washed and used their Modibodi ® undies for much longer! 

Our Biodegradable underwear have been tested at Royal Melbourne Institute of Technology (RMIT) using the ISO 11721-1:2001, Biodegradable Test. RMIT Is a globally recognized institute that performs research and testing through the School of Fashion and Textiles. 

After 9 weeks of biodegradation the pants had begun partial biodegradation. The main fabric of the pant TENCEL™ and Merino wool had clear signs of degradation with holes from microorganisms present in the soil. The gusset’s first layer, Merino wool had begun degrading, the middle layers of bamboo terry and the waterproof layer had not yet begun degrading at 9 weeks based on a visual test.  

Biodegradability test determines the resistance of fibres to microorganisms present in the soil. The ISO standard states the specific soil composition, water holding capacity and temperature that should be used to simulate environmental conditions for biodegradation.  By burying separate fabric samples and the full biodegradable pant, RMIT was able to determine the trajectory of degradation over time by measuring the strength and weight loss of the fabrics and visual observation. 

The waist and leg elastics are a combination of enhanced biodegradation Amni-Soul Eco polyamide yarn and a small percentage of elastane. Their special composition allows bacteria in landfills to digest them, biodegrading into organic matter in about three to five years, unlike other fibers that take decades to decompose. Further information on their testing can be found here https://www.fulgar.com/eng/products/amni-soul-eco  

Our waterproof Thermoplastic Polyurethane (TPU) layer is tested to degrade in 3 – 5 years. Further information on the Green Material can be found here http://www.dingzing.com/en/socialRespons.

Modibodi is committed to pioneering innovative, sustainable solutions to support and protect every person, through all life’s leaks. As a world-first, our Biodegradable leak-proof underwear took an enormous amount of blood, sweat and science to get right! Now that our patent-pending innovation has been developed, we'll be looking to increase the sustainability of all our products over time, utilising the technologies we've developed. Stay tuned! 

Yes, they have the same wicking, absorbency and leak-proof strength as our original underpants, only now they are made from biodegradable materials. Our Biodegrable Modibodi underwear currently come in our Moderate-Heavy absorbency, which holds up to 15mls!   

No. Just like your wool jumper or cotton t-shirt all made of natural biodegradable materials they do not break down in the wash. Biodegradability requires the correct conditions to breakdown – nice active soil for the pant or anaerobic landfill for the elastic where microorganisms can do their work.