Stop sweat marks before they hit your shirt.

Invisible sweat-proof undershirt for workdays, dates, and long hours.

1 10

Wear one, spare one, wash one

Core Set – 3 Pack

The LayerOne Difference

100% Risk-Free Purchase

Purchase with confidence at LayerOne! If your order doesn't meet your expectations, return it within 30 days for a full refund

Odour-Resistant Fabric

Infused with SILVADUR™ silver ions to block odour-causing bacteria. Built in, not sprayed on.

Built to Last

Premium Micro-Modal holds shape, softness, and performance wash after wash.

Exceptional Customer Service

Our team is here to help with sizing, fit, and any questions - before and after your purchase. Fast responses, real solutions, no runaround!

Designed in Australia. Ethically Made

Crafted from sustainable Lenzing® Micro-Modal. Luxuriously soft, breathable, and responsibly produced.

Tag-Free Comfort

No scratchy labels. Just smooth comfort where it counts, all day long.

Trusted by Aussie men

Based on 450+ reviews

Sceptical at first

I was sceptical at first as I tried many other shirt before, but this one really works. It kept my sweat from showing and the fabric feels premium.

Richard L,

28/02/2026

Comfortable on a hot day

Super comfortable and genuinely invisible under my dress shirts. No sweat patches, even on hot days

George M,

15/02/2026

Does what it says

Wasn’t sure at first, but it does exactly what it says. After a few wears, I’ve stopped reaching for my old undershirts.

Archie L, Newcastle

15/01/2026

Lasted all day

Wore this to work and then straight out after - stayed dry the whole time. Didn’t feel bulky or noticeable at all.

Eric Q, Adelaide

30/12/2025

One less thing to worry about

I used to think sweat marks were just part of the day. Since wearing LayerOne, it’s honestly one less thing on my mind.

George M, Mackay

12/12/2025

No More Sweating Through Presentations

Big presentations used to stress me out because of sweat. LayerOne keeps me dry so I can focus on the client.

Mark A, Melbourne

11/11/2025

My girlfriend loves it

My girlfriend bought me a LayerOne after seeing the ads pop up - she was sick of my sweat marks. It worked so well she ended up getting me one for every day of the week. Neither of us are complaining

Tom R, Sydney

28/09/2025

Just works

I have enjoyed wearing this undershirt. It's kept me dry and cool. I had tried to cheaper ones from target, but it didn't do anything. You get what you pay for.

Trevor M, Cairns

03/09/2025

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 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 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

"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

"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 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

"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

"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

"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

"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

"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

Verified

Brian, Melboune

"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

"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 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

"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

"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

"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

"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

"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

Verified

Brian, Melboune

"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

"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 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

"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

"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

"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

"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

"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

Verified

Brian, Melboune

"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

"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 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

"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

"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

"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

"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

Engineered From the Inside Out

Every detail of LayerOne’s construction is chosen to maximise performance, durability, and comfort.

Luxury Micro-Modal Blend – 95% Lenzing® Micro-Modal + 5% elastane - ultra-soft, breathable, and feather-light. Feels invisible under your shirt, but you’ll notice the comfort.

Sweatproof Barrier Technology – Hidden panels use a bamboo–cotton carrier with a waterproof polyurethane membrane. This blocks sweat at the source without sacrificing breathability.

Odour Control Built-In – Infused with SILVADUR™ silver ions that fight odour-causing bacteria from the inside out. Nothing sprayed on, nothing temporary.

Skin-Friendly & Safe – OEKO-TEX® 100 certified - free from harmful substances and safe for sensitive skin. Wear it every day with confidence.

Eco-Responsible Design – Made from sustainably sourced beechwood fibres and produced under ethical standards. Good for you, and better for the planet.

Feel The Difference

Comfort Meets Performance

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.

Get Yours Now