60-day risk-free trial · Free shipping · Full refund if you're not convinced

100% Natural Fibers · Zero PFAS · Zero Microplastics · GOTS + OEKO-TEX Certified

Your running shirt
is made of plastic.
Ours isn't.

The only 100% natural running tee for men who refuse to absorb chemicals during training. 18.5-micron merino wool. Zero PFAS. Zero BPA. Zero synthetic blends, unlike Icebreaker and Smartwool who blend with nylon. OEKO-TEX Standard 100 and GOTS certified.

Run clean - 60 days risk free

The Problem

Every time you sweat in polyester, your skin absorbs what's in it.

Most runners never question what's in their shirt. They just run.

Exercise opens your pores and drives blood to the skin's surface to cool you down. The same process drives anything pressed against your skin directly into your bloodstream. Independent testing by Mamavation and Environmental Health News found PFAS in 1 in 4 workout garments. Independent lab testing found BPA in polyester athletic shirts at 40 times California's safe exposure limit. And research confirms your body absorbs chemicals up to 50% faster during exercise when blood flows to the skin and pores dilate. Every run.

You're running for your health. Your shirt is working against it.

1 in 4

Running garments
testing PFAS-positive

50%

Faster chemical skin
absorption during exercise

Save 25% + Free Shipping

The Problem

Every time you sweat in polyester, your skin absorbs what's in it.

Most runners never question what's in their shirt. They just run.

Exercise opens your pores and drives blood to the skin's surface to cool you down. The same process drives anything pressed against your skin directly into your bloodstream. Independent testing by Mamavation and Environmental Health News found PFAS in 1 in 4 workout garments. Independent lab testing found BPA in polyester athletic shirts at 40 times California's safe exposure limit. And research confirms your body absorbs chemicals up to 50% faster during exercise when blood flows to the skin and pores dilate. Every run.

You're running for your health. Your shirt is working against it.

1 in 4

Running garments
testing PFAS-positive

50%

Faster chemical skin
absorption during exercise

Save 25% + Free Shipping

The Difference

Six ways nature outperforms plastic on every run.

✔️ Zero PFAS. Zero BPA. Zero microplastics.

The merino wool contains no synthetic chemicals — by construction, not certification claim. No PFAS coatings. No antimicrobial chemical treatments that degrade.

✔️ 7 runs. Zero washes. Still fresh.

Merino's keratin and lanolin structure prevents bacterial colonisation at the fibre level. It doesn't fade. It doesn't wash out. Your polyester tee has a permanent bacterial colony after six months. This one doesn't.

✔️ 30% moisture absorption before you feel wet.

Merino absorbs up to 30% of its weight in moisture while the outer surface stays hydrophobic. No clammy feeling. No chemical wicking treatment required.

✔️ Cool in summer. Warm in winter. No chemistry required.

The crimped fibre structure traps air for insulation while releasing heat when your body temperature rises. The same tee that keeps you warm on a cold morning manages heat on a summer trail.

✔️ 17.5 microns. Zero itch.

Itch comes from coarse fibres above 25 microns that poke the skin rather than bend. At 17.5 microns — finer than cashmere — the fibre bends on contact. Most runners who've written off merino tried 25+ micron wool. Different product.

✔️ The only running tee that biodegrades.

When this tee reaches end of life, it returns to the earth. Your polyester shirt will still be shedding microplastics in 2150. That's not sustainability. That's debt.

30%

Moisture held before feeling wet — vs <1% polyester surface wicking

17.5μm

Merino fibre diameter — finer than cashmere, zero itch threshold

4.9★

Average rating from 2,612+ verified runners

7 runs

Worn consecutively without washing — zero odour, blind test confirmed

The Science

We don't say clean. We prove it.

Third-party certifications. Named research. Specific test results. Because 'our product is safe' from a brand means nothing. Proof does.

Certifications

GOTS Certified

Global Organic Textile Standard — highest standard for organic textile processing worldwide

OEKO-TEX Standard 100

Independently tested for 100+ harmful substances including PFAS, BPA, heavy metals, and formaldehyde

BPA-Free — Independently Tested

Third-party lab verification. Not just a brand claim.

PFAS-Free — Independently Tested

No per- or polyfluoroalkyl substances. Verified, not implied.

Limited Time Offer! Save Up To
25% on Your First Order

100% Merino Wool Running Tee

Name: 100% Merino Wool Running Tee
Brand: Zero Plastic Performance
SKU: 53531695874232
Price: 115.0 AUD
Availability: InStock

2,500+ Verified Reviews!

+ LIMITED TIME OFFER: FREE GIFT

The Complete Marathon Training System E-book

Premium Running Tees made out of ultra-fine Australian Merino Wool. Completely Toxins Free. That's a Guarantee.

Color

Black

Navy

Gray

Green

Size

S

M

L

XL

XXL

Title

Tell me more about

Benefits
Zero Plastics
GUARANTEE

Run faster. Run healthier.

Kills odor naturally

No BPA & PFAs for a toxin free workout

Ultra-fine Wool for zero chafing & irritation

Thermoregulation for exercise in all climates

Anti-microbial means more wears and less washes

Ultra-durability. Buy once and use for years

We built this tee because most men have no idea what's actually in their running shirt. Every run in a standard polyester or synthetic tee means PFAS, BPA, phthalates, and microplastics absorbing directly through sweat-opened pores into your skin. These are chemicals independently linked to hormone disruption, reduced testosterone, and long-term health consequences that no performance brand wants to talk about. The Zero Plastic Performance Running Tee contains zero synthetic fibres, zero chemical treatments, zero plastic. Just 100% natural merino wool, third-party tested clean, so the only thing working against you on your run is the distance.

Take it on your morning run, your long run, or anywhere you'd usually reach for your synthetics. Wear it through 90 days of real training. If you don't feel the difference of running in 100% natural merino wool with zero chemicals, zero plastic, and nothing working against your body while you sweat, send it back for a full refund. No questions. Return shipping on us.

We offer this because the men who try it don't send it back. Once you know what it feels like to run without PFAS, BPA, and microplastics absorbing through your skin every session, going back to polyester stops being an option.

Quantity

Our Moneyback Guarantee

Try them for 90 days. If you don't love them, we'll refund every cent. Free return shipping included. No questions asked. Just email support@zeroplasticperformance.com

Product Information

17.5 Micron Merino: Softer than cotton. Verified pure.
Woolmark Certified: No blends. No shortcuts.
GOTS Certified Cotton: Grown without a single chemical.
OEKO-TEX® Standard 100: Every part tested skin-safe.
Bluesign® Approved: Zero harmful substances. Period.
100% Plastic-Free: No polyester. No toxins. Ever.

Shipping and Delivery

FREE SHIPPING: All orders ship free, no minimum purchase required.

PROCESSING TIME: Orders ship next business day (Monday-Friday, excluding holidays).

DELIVERY TIME: 7-10 days from ship date.

TRACKING: You'll receive tracking information via email once your order ships.

RISK-FREE RETURNS: 90-day return window with free return shipping. No questions asked.

Sizing Guide

Units

IN CM

True to size. Our merino wool tee is cut close to standard sizing. Pick your usual size for a tailored fit, or order one size up if you prefer a looser, more relaxed feel.

	S	M	L	XL	2XL
Chest	34–36"86–91 cm	36–38"91–96 cm	38–40"96–101 cm	40–42"101–106 cm	42–44"106–111 cm
Length	26.0"66 cm	26.4"67 cm	26.8"68 cm	26.8"68 cm	27.6"70 cm

How to measure. Chest — wrap a tape around the fullest part of your chest, under your arms. Length is the finished garment length, measured from the highest point of the shoulder to the hem. Chest figures are body measurements. If you're between sizes, size up for a more relaxed fit.

Verified runners

2,612 Runners. 5 Stars.

Daniel F.

Trail Runner 11 years

"I've been running trails for 11 years. I run hot and I sweat hard. I bought this expecting to be disappointed — every merino tee I've tried has been too warm, too fragile, or too much like a hiking shirt. This is none of those things. I wore it for back-to-back long runs, 18 miles Friday, 22 Saturday. No smell. Full movement. Not one patch of sweat clinging to my skin. The fit is cut for running, not standing in a field. I've ordered two more."

Marcus W.

Health Optimizer · Quarterly Bloodwork

"I track my bloodwork quarterly. I eat organic, filter my water, and cut seed oils three years ago. I had not thought about my running shirt until I read the PFAS data. One in four running garments. My Lululemon had tested positive. I ordered this the same day. Six weeks in — no odour, not once. My back acne cleared up after long runs, something I'd accepted as normal for years. Turns out it wasn't sweat. It was the shirt."

James R.

14 Marathons · Recent Convert

"Wool for running seemed like something a hiking brand made up. I've run 14 marathons in polyester and thought I knew what performance felt like. My training partner wouldn't shut up about this so I bought it to prove him wrong. I wore it for three consecutive runs without washing. No smell. Proper range of motion. Regulated heat better than my Nike Dri-FIT in the same conditions. My training partner was right. I hate that."

For the Runner Who Optimizes Everything

You eat clean. You train clean. You track everything. Your shirt is the one thing you haven't fixed.

The health-optimized runner eliminates every variable that works against his performance. He reads ingredient labels. He questions mainstream recommendations. He knows that a 5am run in a plastic shirt, pores open, skin hot, absorbing at 50% higher rate, is an hour of chemical exposure he chose without knowing it.

Zero Plastic Performance exists for the runner who's already made every other clean choice. This is the last one.

Switched to filtered water

Cut seed oils from your diet

Training 4–6 days per week, year-round

Tracking HRV, sleep, and macros

Still running in a polyester shirt

The Comparison

100% natural isn't a marketing claim. It's a material difference.

Icebreaker and Smartwool blend with nylon. Their fibres still shed microplastics. "Merino" in the name doesn't mean clean. Check the label

Feature

Merino Blend
(Icebreaker, Smartwool)

PFAS detected

Possible (nylon content)

Microplastics per wash

Yes (synthetic content sheds)

Odour after 5 runs

Partial resistance

100% natural fibres

No — nylon/polyester blend

Biodegradable

No (synthetic content persists)

Certifications

Limited

Lifespan

12–18 months

Common Questions

Straight Answers

Will it actually perform for running, or is merino just for hiking?

This is the most common question we get, and it's a fair one. Merino wool has been used by trail runners, ultramarathon athletes, and endurance competitors for years — not because it's a lifestyle fabric, but because it outperforms synthetics where it matters most. It absorbs up to 30% of its weight in moisture without ever feeling wet or clammy, wicks sweat away from your skin before it becomes liquid, and regulates temperature in both directions — keeping you cooler in summer heat and warmer on cold mornings. The Zero Plastic Performance tee is cut specifically for running, not hiking. It is not a casual layer with an athletic name on it.

My polyester shirt stinks after one run no matter how many times I wash it. Will this actually fix that?

Yes, and here is why your current shirt can't be fixed. Odour-causing bacteria permanently embed into polyester fibres at a microscopic level. Washing removes surface bacteria but leaves the rest behind. That is why the smell returns after one wear no matter how many times you wash it. Merino wool works differently. Natural lanolin in the fibre actively inhibits bacterial growth at the source — it is not a chemical treatment that fades, it is a biological property of the fibre itself. In blind smell tests, merino remained fresh after seven consecutive days of wear while polyester produced sharp, persistent odour by day two.

Is the PFAS and toxin concern real, or is this just health marketing?

The research is documented and independent. Studies have found that 25% of tested activewear products contain detectable PFAS — the same class of forever chemicals the EPA is now regulating in drinking water. BPA has been detected in athletic shirts at multiples of safe exposure limits. During exercise, skin absorption of chemicals increases by up to 50% as blood flow to the surface increases to support cooling. This means your running shirt is the most chemically significant clothing decision you make each day. The Zero Plastic Performance tee is third-party tested for PFAS, BPA, and phthalates. The results are verifiable, not a marketing claim.

Why does it cost so much more than my current running shirts?

Because the cost-per-wear is actually lower. A $35 polyester running shirt needs washing after every run and typically degrades within 12 months of regular use. The Zero Plastic Performance tee can be worn three to five times between washes and, with proper care, lasts two years or more. Run the numbers: a shirt worn 150 times over two years costs significantly less per use than a cheaper shirt replaced every year. You also save on water, energy, and detergent from reduced washing. The price is higher upfront. The value over time is not.

Won't wool be too hot for summer running?

This is a widespread misconception about wool in general that does not apply to performance-weight merino. Unlike bulky winter wool, the Zero Plastic Performance tee is built at a lightweight GSM specifically designed for warm conditions. Merino's fibre structure creates tiny air pockets that actively regulate your microclimate — releasing heat and moisture when you are warm rather than trapping it. Runners in warm climates including Australia wear it year-round precisely because of this. It breathes with your body in a way polyester, which traps heat against the skin, fundamentally cannot.

Will it be itchy?

No. This is the single most common misconception about merino wool. Regular wool fibres are around 70 microns in diameter — thick enough to poke and irritate skin. Our merino is 18.5 microns, fine enough to bend on contact rather than scratch. The result is a fabric that most people describe as softer than their best cotton tee. If you have ever avoided wool because of itchiness, performance merino is a genuinely different experience.

Will it get holes?

Merino is a natural fibre and requires slightly more care than synthetics. Thrown into a hot wash or tumble dryer regularly, it will degrade faster than polyester. Washed on a cool wool cycle and air dried, it holds up to years of regular running. We are transparent about this because we would rather you know how to look after it than be disappointed. Our construction uses a weight specifically chosen to balance performance with durability for running use, and the tee is backed by a 90-day guarantee. If it fails to perform, send it back.

How do I wash it?

Machine wash on a cool wool cycle. Do not tumble dry. Air dry flat or hanging. That is the full care requirement. Respecting these steps means the tee performs and lasts for years. Ignoring them — particularly the tumble dryer — is the fastest way to shorten its life. Most men who make the switch find that washing less frequently anyway makes the care routine feel like no extra effort at all.

What if I try it and it does not work for me?

Then you send it back and we refund you in full. No questions, no fine print, return shipping on us. We offer 90 days because we want you to put it through real training — not just wear it once around the house. The return rate is under 3%. That is not a marketing figure, it is a reflection of what happens when people actually run in it.

Zero Plastic Performance

100% natural merino wool activewear. No synthetics. No PFAS. No compromise.

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You might like...

Your running shirt
is made of plastic.
Ours isn't.

Every time you sweat in polyester, your skin absorbs what's in it.

Every time you sweat in polyester, your skin absorbs what's in it.

Six ways nature outperforms plastic on every run.

We don't say clean. We prove it.

Limited Time Offer! Save Up To
25% on Your First Order

100% Merino Wool Running Tee

+ LIMITED TIME OFFER: FREE GIFT

Tell me more about

Our Moneyback Guarantee

2,612 Runners. 5 Stars.

You eat clean. You train clean. You track everything. Your shirt is the one thing you haven't fixed.

100% natural isn't a marketing claim. It's a material difference.

Straight Answers

You might like...

Your running shirtis made of plastic.Ours isn't.

Every time you sweat in polyester, your skin absorbs what's in it.

Every time you sweat in polyester, your skin absorbs what's in it.

Six ways nature outperforms plastic on every run.

We don't say clean. We prove it.

Limited Time Offer! Save Up To25% on Your First Order

100% Merino Wool Running Tee

+ LIMITED TIME OFFER: FREE GIFT

Tell me more about

Our Moneyback Guarantee

2,612 Runners. 5 Stars.

You eat clean. You train clean. You track everything. Your shirt is the one thing you haven't fixed.

100% natural isn't a marketing claim. It's a material difference.

Straight Answers

Your running shirt
is made of plastic.
Ours isn't.

Limited Time Offer! Save Up To
25% on Your First Order