friendly Mycelium
Our plastic-eating Mycelium stay safely asleep and dormant in the HIRO Pouch until they come into contact with your baby’s pee or poop.
HIRO Diapers are the world’s first truly naturally degradable, high-performing diapers — soft on skin, tough on leaks, and powered by plastic-eating Mycelium to return to the Earth.


HIRO is on a mission to help solve the global plastic crisis, starting with the #1 household plastic waste item: diapers.
Every baby spends their first 1,000 days in a bleached diaper. Every baby goes through ~6,000 of them. And every single one takes 400+ years to break down.
We saw that and couldn’t unsee it. So we built something better. A diaper where baby, parent, and planet all win. For real.
Only Unbleached Diaper
Softest TruCotton
No Chemical Blue Line (BTB)
Super Absorbent
First, we stripped out everything that shouldn’t be there. The bleach. The excess plastic. The toxic blue line. What’s left is soft, clean, unbleached cotton that actually absorbs and prevents blowouts. Made with up to 50% less plastic.
The first and only unbleached, high-performing diaper on the market. Made with family-run American cotton farmers.
less plastic than leading brands
(only where performance matters)
drier than leading brands
faster absorption than eco diapers
ONE ISPIRED ACTION
(no need to open it). That’s it. Let nature take it from there.
One baby. ~6,000 diapers that take up to 500 years to break down. HIRO built a rolling sculpture out of them and sent it across America to make that number impossible to ignore.
The first step to changing something is actually seeing it. That’s what this tour is for.


Yes we’re a diaper company, but we’re not here to sell you more diapers.
EasyEC is learning your baby’s cues so they go in a toilet instead. Less waste, thousands of dollars saved, and out of diapers way sooner. HIRO teaches it free, every month.