
The Underwear He’s Wearing Right Now Could Be Hurting His Fertility
Most men wear polyester underwear. Polyester is plastic.
When plastic sits against his testicles all day, it sheds microplastics into his skin.
Those particles can reach his reproductive system and lower sperm health.
He won’t feel it.
He won’t see it.
But *you* will — when you’re trying for a baby.
This is something you protect now, not later.
The Small Change That Protects Your Future Family
Most underwear is made from polyester (plastic).
Plastic can shed microplastics against his reproductive area.
Our underwear is made from 100% organic cotton — no plastic, no toxins, nothing that messes with sperm health.
This is a small switch that can help protect your ability to have healthy kids one day.
|   | Layer One | Others |
|---|---|---|
| Protects Future Fertility | ||
| No Microplastics | ||
| Safe Organic Cotton | ||
| Supports Sperm Health | ||
| For Couples Who Want Kids One Day |
This Isn’t a Theory. It’s Proven.
A researcher at Cairo University studied how polyester underwear affects sperm.
What he found shocked everyone:
100%
100% of men wearing polyester underwear had zero sperm after 4.5 months. (Yes. Zero.)
100%
When they stopped wearing polyester, their sperm counts returned to normal.
(So the underwear was the cause.)
17%
17% of dogs exposed never recovered their sperm count.
(Permanent damage.)
FAQs
What is polyester and why should I be afraid of it?
What is polyester and why should I be afraid of it?
Polyester is made from the same stuff as plastic bottles and that’s what most underwear is made of. Every time you wear it, tiny plastic fibres rub off into your skin and bloodstream.
It traps heat, chemicals, and sweat right against your private parts, which can mess with hormones and sperm health over time. It’s cheap for brands to make, but your body ends up paying the price.
Studies show men wearing polyester underwear for 4 months became Azoospermic. which means they had a low sperm count.
Why are these more expensive than normal undies?
Why are these more expensive than normal undies?
Our underwear is premium, long-lasting and made from natural fibres that protect your fertility.
Plastic underwear is cheap because it kills your sperm. You can have cheap, but at the expense of losing your sperm.
It is far cheaper to protect your health now, than to spend $1,000s on fertility treatments later.
Do these actually help sperm health?
Do these actually help sperm health?
Yes. By keeping your balls cool and eliminating microplastics and toxins, Merino undies create the healthiest environment possible for your sperm. Cheap polyester does the opposite.
Will they really feel different to normal undies?
Will they really feel different to normal undies?
100%. Once you wear Merino, you’ll notice the cooler temp, zero swamp crotch and premium softness instantly. Wise blokes never go back.
How long do they last?
How long do they last?
Merino is naturally durable. Unlike cotton or polyester that sag and stretch, these keep their shape and strength for many wears.
Do they ride up or fall down?
Do they ride up or fall down?
Nope. Designed with a supportive fit that stays put all day, no bunching, no slipping, no constant adjusting.
Will they smell after a long day?
Will they smell after a long day?
No. Merino wool is naturally antibacterial and odour-resistant. Even after work or the gym, you’ll stay fresh.
How fast will I get them?
How fast will I get them?
We ship within 24–48 hours, and most Aussie orders arrive in 2–5 business days. You’ll also get full tracking so you know exactly where your order is.
What’s your guarantee?
What’s your guarantee?
We back every pair with a 90-Day Money Back Guarantee. Try them. Wear them. If you don’t feel cooler, fresher and more comfortable than ever, send them back. Full refund, no hassle.