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Wear one, spare one, wash one.

Core Set – 3 Pack

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Monday to Friday sorted

Week Long - 5 pack

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Sweatproof Protection

Dual-layer panels under the arms and back block sweat before it ever reaches your outer shirt. No stains, no stress - whether it’s a packed commute, a big meeting, or a night out.

Odour Control

Infused with SILVADUR™ silver ions, the fabric actively fights odour-causing bacteria. That means you stay fresher for longer, without relying on sprays or gimmicks.

Tailored Slim Fit

Designed to contour cleanly to your body without bunching or bulk. Disappears under any dress shirt, so all anyone sees is sharp, confident style.

Protection That Pays for Itself.

Most sweat-proof undershirts stop at the armpits. BUT 99% of men who sweat under their arms also sweat across their back, which means half the problem is still unsolved.

That’s why LayerOne goes further. With dual sweat-blocking panels under the arms and across the upper back, you get:

Fewer ruined shirts → Save money by protecting your dress shirts from stains and dry-cleaning bills.
Less hassle → No more midday outfit changes or quick bathroom “fixes.”
More confidence → Focus on what matters instead of worrying about sweat marks.

Complete protection where sweat actually shows, and peace of mind that pays for itself.

Get Full Protection

Trusted by Aussie men

Based on 450+ reviews

Almost forgot I was wearing it!

The material is super soft and light — it doesn’t feel bulky under my work shirts. I run warm even in winter, and this has helped me stay fresh without needing to peel layers off mid-day. Only wish I had found this sooner.

Mason T, Canberra

27/07/2025

Impressed with the fit

Keeps me from sweating under my coat during cold commutes. I can simply wash the undershirt without having to wash my outer garments as often. Great if you're trying to protect your clothes

James Y

09/07/2025

My wife noticed

I suffer from hyperhidrosis. Wife said, "you're not sweating through your shirts anymore... and you don't smell!" Enough said.

Rajesh S, Newcastle

08/06/2025

Does what it says

Works as described. Took a bit to get used to the feel.

Mohammad C, Sydney

14/05/2025

Quality exceeded my expectations!

I bought a 3 pack and worn them everyday for the past 3 months. Even after so many washes, the shirt retains is shape and feel

Oscar P, Melbourne

09/06/2025

No More Damp Shirts

Great for this time of year breathes well and manages the heat from inside offices. Great protection for the underarms and back where I sweat most

Jack Y

03/05/2025

Comfortable and effective!

You can get a cheap undershirt from target, but it's not going to keep you dry. I made the switch and haven't looked back. I bought 1 shirt to try, now I will get the 3 pack

Alan R, Brisbane

26/04/2025

Game-changer for client meetings

I used to get anxious before big presentations, not because of nerves — but because I knew my shirt would be soaked by the end of it. Since switching to LayerOne, I’ve gone through entire pitch days without a single sweat mark. It fits perfectly under my dress shirt and gives me one less thing to stress about.

Archie G, Adelaide

26/03/2025

Didn’t think I’d care this much about an undershirt

I have been wearing the undershirts from Kmart for years and decided to make a shift and forked out some money for LayerOne 'cos I saw it on my social. I've been converted - the underarm and... even the back protection is amazing! Going to get a few more to complete my work week.

Aidan T, Wollongong

03/03/2025

Good, but a bit snug

The fit is great under shirts, but I'd recommend sizing up if you're in between.

Chris M, Hobart

15/02/2025

Great shirts, just waited a bit

I do love these shirts. Unfortunately when I bought them, they were out of stock... took me a few weeks to receive my 3-pack

Sergei H, Sydney

01/02/2025

Worth every dollar

More expensive than my usual undershirts but 100% worth it!

Jason M, Sydney

24/01/2025

Better than expected

Did the job well just wish there were more colour options.

Lance L, Melbourne

16/01/2025

A step up from basics

Definitely better than department store undershirts and does what it says, but not life-changing.

Henry L, Perth

16/12/2024

Kept me dry in 35 degree heat

I wore this during a scorcher in January and didn't sweat through once. Hands down the best undershirt I've ever owned.

William T, Sydney

09/12/2024

Hot Day, No Problem

Commuted across Perth in 34-degree heat and stayed completely dry. I don't remember that happen to me before

Stephen S, Perth

01/12/2025

Great for spring heat spikes!

It was my first time trying this shirt and I didn't know if it would work. It handled the surprise 28-degree day last week like a pro.

David P, Melbourne

12/11/2025

Works well, but pricey

Does the job, I just wish it was a bit more affordable.

Ethan O, Brisbane

27/10/2024

Feels great!

The fabric is super stretchy and feels great on my body. Definitely does what it says it does. I bought my brother a shirt yesterday

Mudit G, Melbourne

09/10/2024

My spring staple

Spring a weird season where the temps go up and down. This shirt is my go to each day without fail

Isaac L, Perth

28/09/2024

Good customer service

I got the wrong size shirt, reached out to Support and they exchanged a new one right away. No complaints!

Huang W, Melbourne

09/09/2024

Good shirt

Robert H, Sydney

25/08/2024

It actually worked

A wore this shirt to work and to the gym for a total of 12 hours. It kept me dry all day. I didn't get any complaints from my girlfriend about any smells

Ryan S, Hobart

13/08/2024

Good length

Fits well! Love this shirt. Extra length for us long torso’d ones. Comfortable material, no sweat show. I need another one

Ranjit S, Gold Coast

31/07/2024

Great Shirt For Hyperhidrosis

I recently tried Layerone's sweat/odour proof undershirt, and overall, I’m impressed with its performance. This shirt is designed to keep sweat from showing through, which is a big deal if you have hyperhidrosis or tend to sweat more than usual.

Ricky S, Adelaide

20/07/2024

Under Jumper? Still Dry

I wear it under my winter clothes and haven't had a clammy day yet.

Justin K, Sydney

03/07/2024

Stays tucked, kind of tight

Really appreciate the extra length, which works well for a tall guy like me, but it fits tighter than expected. Might just be my body type...

Max Y, Melton

25/06/2024

Real people. Real results

1000+ Happy Customers

Excellent 4.7

“I wore this undershirt from the office straight to the gym - 12 hours later, still no sweat patches and no smell. It handled a full workday and a workout without breaking a sweat (literally). I’m genuinely impressed.”

Verified

Brian, Melboune

"This shirt fits me better than many of the other shirt I have in the wardrobe. The fabric feels great and wraps around my body nicely. Well done Layerone, I'm impressed"

Verified

Leslie, Logan

"My wife had been nagging me for years to do something about my sweat problem. The stains were wrecking my business shirt. My friend recommended this - I bought 3 and now I wear it everyday to work"

Verified

Abdul, Parramatta

"I’ve tried a few sweatproof shirts before, but this one is by far the most comfortable. The fabric is breathable, and it actually works in stopping sweat from showing. Worth every cent."

Verified

Leon, Newcastle

"I'm 6.2" and this shirt doesn't feel short at all. I work as an Accounts Manager, so I'm always on the road. This shirt has kept me dry and reduced my dependence on deodorant to smell fresh"

Verified

Dev, Perth

"I'm a pretty hair guy, so I sweat a fair bit. I would buy the undershirts from Target, but they never kept my area dry. This shirt has helped me stay dry and smelling fine like never before."

Verified

Moe, Sydney

"I used to go through two shirts a day in summer. Now I just wear this undershirt and stay dry from morning to night. It’s been a total game-changer."

Verified

Christian, Sydney

"This is my 2nd shirt. I bought one for my brother the other day as he sweats no matter the temperature. He loves it too. I should have bought a 3-pack to for a better deal!"

Verified

Sid, Gold Coast

"At first I thought the price was a bit much for an undershirt… but now I wear it 4–5 times a week. Worth every cent. Keeps me dry and saves my good shirts."

Verified

Don, Sydney

"One of the best undershirts I've tried in years. Stops back and underarm sweat stains"

Verified

Sebastian, Cairns

"I work as a real estate agent and I'd keep my blazer on on warm days to avoid showing sweat market. This shirt has changed my confidence and it's also very comfortable."

Verified

Amir, Sydney

"I was sceptical at first, but seeing is believing! Even after a long, hot day, there isn't a single sweat mark. The protection is great, and the shirt still feels light and comfortable. This is exactly what I’ve been looking for."

Verified

Josh, Melbourne

Verified

Brian, Melboune

"This shirt fits me better than many of the other shirt I have in the wardrobe. The fabric feels great and wraps around my body nicely. Well done Layerone, I'm impressed"

Verified

Leslie, Logan

"My wife had been nagging me for years to do something about my sweat problem. The stains were wrecking my business shirt. My friend recommended this - I bought 3 and now I wear it everyday to work"

Verified

Abdul, Parramatta

"I’ve tried a few sweatproof shirts before, but this one is by far the most comfortable. The fabric is breathable, and it actually works in stopping sweat from showing. Worth every cent."

Verified

Leon, Newcastle

"I'm 6.2" and this shirt doesn't feel short at all. I work as an Accounts Manager, so I'm always on the road. This shirt has kept me dry and reduced my dependence on deodorant to smell fresh"

Verified

Dev, Perth

"I'm a pretty hair guy, so I sweat a fair bit. I would buy the undershirts from Target, but they never kept my area dry. This shirt has helped me stay dry and smelling fine like never before."

Verified

Moe, Sydney

"I used to go through two shirts a day in summer. Now I just wear this undershirt and stay dry from morning to night. It’s been a total game-changer."

Verified

Christian, Sydney

"This is my 2nd shirt. I bought one for my brother the other day as he sweats no matter the temperature. He loves it too. I should have bought a 3-pack to for a better deal!"

Verified

Sid, Gold Coast

"At first I thought the price was a bit much for an undershirt… but now I wear it 4–5 times a week. Worth every cent. Keeps me dry and saves my good shirts."

Verified

Don, Sydney

"One of the best undershirts I've tried in years. Stops back and underarm sweat stains"

Verified

Sebastian, Cairns

"I work as a real estate agent and I'd keep my blazer on on warm days to avoid showing sweat market. This shirt has changed my confidence and it's also very comfortable."

Verified

Amir, Sydney

Verified

Josh, Melbourne

Verified

Brian, Melboune

"This shirt fits me better than many of the other shirt I have in the wardrobe. The fabric feels great and wraps around my body nicely. Well done Layerone, I'm impressed"

Verified

Leslie, Logan

"My wife had been nagging me for years to do something about my sweat problem. The stains were wrecking my business shirt. My friend recommended this - I bought 3 and now I wear it everyday to work"

Verified

Abdul, Parramatta

"I’ve tried a few sweatproof shirts before, but this one is by far the most comfortable. The fabric is breathable, and it actually works in stopping sweat from showing. Worth every cent."

Verified

Leon, Newcastle

"I'm 6.2" and this shirt doesn't feel short at all. I work as an Accounts Manager, so I'm always on the road. This shirt has kept me dry and reduced my dependence on deodorant to smell fresh"

Verified

Dev, Perth

"I'm a pretty hair guy, so I sweat a fair bit. I would buy the undershirts from Target, but they never kept my area dry. This shirt has helped me stay dry and smelling fine like never before."

Verified

Moe, Sydney

"I used to go through two shirts a day in summer. Now I just wear this undershirt and stay dry from morning to night. It’s been a total game-changer."

Verified

Christian, Sydney

"This is my 2nd shirt. I bought one for my brother the other day as he sweats no matter the temperature. He loves it too. I should have bought a 3-pack to for a better deal!"

Verified

Sid, Gold Coast

"At first I thought the price was a bit much for an undershirt… but now I wear it 4–5 times a week. Worth every cent. Keeps me dry and saves my good shirts."

Verified

Don, Sydney

"One of the best undershirts I've tried in years. Stops back and underarm sweat stains"

Verified

Sebastian, Cairns

"I work as a real estate agent and I'd keep my blazer on on warm days to avoid showing sweat market. This shirt has changed my confidence and it's also very comfortable."

Verified

Amir, Sydney

Verified

Josh, Melbourne

Verified

Brian, Melboune

"This shirt fits me better than many of the other shirt I have in the wardrobe. The fabric feels great and wraps around my body nicely. Well done Layerone, I'm impressed"

Verified

Leslie, Logan

"My wife had been nagging me for years to do something about my sweat problem. The stains were wrecking my business shirt. My friend recommended this - I bought 3 and now I wear it everyday to work"

Verified

Abdul, Parramatta

"I’ve tried a few sweatproof shirts before, but this one is by far the most comfortable. The fabric is breathable, and it actually works in stopping sweat from showing. Worth every cent."

Verified

Leon, Newcastle

"I'm 6.2" and this shirt doesn't feel short at all. I work as an Accounts Manager, so I'm always on the road. This shirt has kept me dry and reduced my dependence on deodorant to smell fresh"

Verified

Dev, Perth

"I'm a pretty hair guy, so I sweat a fair bit. I would buy the undershirts from Target, but they never kept my area dry. This shirt has helped me stay dry and smelling fine like never before."

Verified

Moe, Sydney

"I used to go through two shirts a day in summer. Now I just wear this undershirt and stay dry from morning to night. It’s been a total game-changer."

Verified

Christian, Sydney

"This is my 2nd shirt. I bought one for my brother the other day as he sweats no matter the temperature. He loves it too. I should have bought a 3-pack to for a better deal!"

Verified

Sid, Gold Coast

"At first I thought the price was a bit much for an undershirt… but now I wear it 4–5 times a week. Worth every cent. Keeps me dry and saves my good shirts."

Verified

Don, Sydney

"One of the best undershirts I've tried in years. Stops back and underarm sweat stains"

Verified

Sebastian, Cairns

"I work as a real estate agent and I'd keep my blazer on on warm days to avoid showing sweat market. This shirt has changed my confidence and it's also very comfortable."

Verified

Amir, Sydney

Verified

Josh, Melbourne

Shop LayerOne

SEE A LIVE DEMO ▶

Proof, Not Promises.

See the sweatproof barrier in action - water rolls off, your shirt stays spotless.

LayerOne is built for long days, hot commutes, and big moments. Stay composed and in control, no matter what the day throws at you.

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