HIRO Diapers

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.

Designed for babies, engineered for Earth

Dear Parent

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 up to 500 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.

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A Better Diaper

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Only Unbleached Diaper

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Softest TruCotton

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No Chemical Blue Line (BTB)

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Super Absorbent

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UP TO—

50%

less plastic than leading brands

(only where performance matters)

5X

drier than leading brands

3X

faster absorption than eco diapers

With a Better Ending

A diaper’s lifespan is 2–3 hours…and then sits in a landfill, riverbed, or ocean for up to 500 years. 100 billion diapers are used every single year globally and will outlive your great-great-great-great-great grandchild.So we created the easiest path to a regenerative future. This is the moment to partner with nature.

HIRO harnesses friendly Mycelium to catalyze the breakdown of each diaper, giving it a better ending.

100B

Diapers used every single year, globally

~500

years a conventional diaper sits in a landfill

2–3

hours before the next change. We thought hard about every one.

6,000 diapers.
One sculpture.

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.

Meet the MycoPod™


Natural and safe mycelium are designed to digest our diapers naturally instead of sitting in a landfill.

How it works

How it works

Remove the soiled diaper.

We designed the HIRO Diaper to be the least processed for the baby and also for the Mycelium to recognize it as food. Unbleached cotton, way less plastic (only where performance counts), NO toxic blue line (aka wetness indicator).

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Drop in the MycoPod™

There are NO Mycelium in the diaper. Instead every HIRO Diaper comes with a sidekick: the HIRO Pouch, a cozy home for our friendly Mycelium. Just toss the pouch into the soiled diaper during changing time.

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Throw it away like normal.

No special throw-away steps, simply toss into the garbage and wait for our friendly Mycelium to wake up, and in a couple of weeks start working their magic. Saving the planet has never been easier.

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Let the Mycelium do its thing.

When it ends up in a landfill, nature takes it from there, with our vision for the diaper to fully breakdown. Sustainable. Low-effort. Very magical.

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Easy Elimination Communication (EasyEC™)

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.

Award Winning Diapers

“2024 Innovation Award Winner”

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