LayerOne | Men’s Sweat-Proof Undershirts

Australia's Only Dual-Zone

Sweat-Proof Undershirt

Stops underarm and back sweat

before it reaches your shirt.

SHOP NOW

Excellent 4.7 | 1000+ Happy Customers

Australia's Only Dual-Zone Sweat Proof Protection

Targeted underarm and upper-back panels help stop sweat before it reaches your outer shirt.

Odour Control

SILVADUR™ technology helps reduce odour-causing bacteria, keeping the shirt fresher for longer.

Tailored Slim Fit

Soft, stretchy MicroModal sits close to the body without bunching, so it stays invisible under your shirt.

Pick Your Pack

Try the difference with one

Men’s Sweat Proof Undershirt
Solo Starter (1 Pack)

SHOP 1-PACK

Wear one, wash one, spare one

Men’s Sweat Proof Undershirt
Core Set (3 Pack)

SHOP 3-PACK

Monday to Friday sorted

Men’s Sweat Proof Undershirt
The Week Long (5 Pack)

SHOP 5-PACK

Trusted by 1000's of Aussie men

Average rating 4.7

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

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.

Tom R, Sydney

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

The LayerOne Difference

Front AND Back Protection

The two spots your outer shirt shows sweat first. Both sorted.

Built For Aussie Weather

Engineered for how Aussie men actually live and work—hot commutes, stuffy offices, layers that come off as the day warms up.

Made To Last

For men who just want the problem solved. Holds its shape and keeps protecting you wash after wash.

Real results

99% of customers noticed fewer visible sweat marks.

30 Day Money-Back Guarantee

We’re confident you’ll love how LayerOne fits, feels, and performs.

If it’s not right for you, simply return or exchange it within 30 days.

Protection Without the Bulk

LayerOne isn’t just any old undershirt with sweat pads.

It combines premium Micro-Modal fabric with targeted sweat-proof panels and built-in odour control (SILVADUR™) - so it feels soft under your shirt, while stopping sweat marks before they show.

SHOP NOW

Comfort Meets Protection

Your cart is empty

Your cart

Estimated total

Trusted by 1000's of Aussie men

The LayerOne Difference

Built For Aussie Weather

Made To Last