35K+ Happy Customers

Excellent 4.7

Built to stay fresh

Stretchy, water repellent performance basics designed to keep you looking sharp all day.

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Stay fresh all day

Blocks visible sweat marks and helps prevent odor.

No iron needed

Wrinkle resistant fabric keeps you looking sharp.

Built for long days

Lightweight comfort for work, travel and after hours.

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T-shirt basic
£34.95
Sale
V-neck sweatproof undershirt
£55.00 £39.00 Save £16.00
Underform SweatProof Undershirt
£49.95
Sweat blocking technology

Stop sweat marks before they show.

Underform is engineered with a water resistant underarm panel that helps block moisture before it reaches your shirt. So you stay fresh, sharp and confident through meetings, commutes and long workdays.

Helps prevent visible underarm sweat marks

Keeps your outer shirt looking clean and dry

Built for pressure, heat and long workdays

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Iron free technology

Stay sharp without the iron.

Underform shirts are made with wrinkle resistant fabric that helps your shirt stay crisp from the moment you put it on until the end of your workday. Built for busy mornings, travel days and long hours when you still need to look put together.

Wrinkle resistant fabric that stays smooth with less effort

Keeps your shirt looking sharp through long workdays

Ready to wear from your bag, wardrobe or after washing

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SHOP THE NON IRON COLLECTION

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Knitted NON IRON shirt longsleeve
£130.00 £95.00 Save £35.00
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Non Iron Polo Business Casual
£0.00
Non Iron Short Sleeve
£109.00

Made to perform. Trusted to deliver.

Excellent

4.6

/ 5

based on 1067 reviews

It works for me

I bought one to try and ordered more after a few days. It’s comfortable, not too thick, and my shirt stays looking better for longer. I bought one to try and ordered more after a few days. It’s comfortable, not too thick, and my shirt... I bought one to try and ordered more after a few days. It’s comfortable, not too thick, and my shirt stays looking better for longer.

Dylan

Great

Really simple product, but it does what I needed. I wear it under my office shirts and it just makes me feel a bit more confident during the day. Really simple product, but it does what I needed. I wear it under my office shirts and it just makes... Really simple product, but it does what I needed. I wear it under my office shirts and it just makes me feel a bit more confident during the day.

Oliver

Solid

Honestly just a solid basic. Feels good, looks clean under a shirt and does the job. I’ll probably get a few more. Honestly just a solid basic. Feels good, looks clean under a shirt and does the job. I’ll probably get a... Honestly just a solid basic. Feels good, looks clean under a shirt and does the job. I’ll probably get a few more.

Harry

Nice

Didn’t expect much tbh, but I actually wear it almost every workday now. It sits good under my shirts and I don’t have to think about sweat marks all the time. Didn’t expect much tbh, but I actually wear it almost every workday now. It sits good under my shirts and... Didn’t expect much tbh, but I actually wear it almost every workday now. It sits good under my shirts and I don’t have to think about sweat marks all the time.

Thomas

Good quality

The material feels really nice. Soft, but still fitted. I hate undershirts that feel bulky, this one doesn’t. The material feels really nice. Soft, but still fitted. I hate undershirts that feel bulky, this one doesn’t. The material feels really nice. Soft, but still fitted. I hate undershirts that feel bulky, this one doesn’t.

Ben

No sweatmarks

I wear it mostly when I have client meetings. Just gives me peace of mind knowing I’m not going to have obvious sweat marks halfway through the day. I wear it mostly when I have client meetings. Just gives me peace of mind knowing I’m not going to... I wear it mostly when I have client meetings. Just gives me peace of mind knowing I’m not going to have obvious sweat marks halfway through the day.

Daniel

Like advertised

Works great under my white shirts. You don’t really see it, which was the main thing for me. Fit is good too, not too tight. Works great under my white shirts. You don’t really see it, which was the main thing for me. Fit is... Works great under my white shirts. You don’t really see it, which was the main thing for me. Fit is good too, not too tight.

Archie

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See how Underform performs in real life

Trusted by 30,000+ men to stay fresh, dry and sharp through long workdays.