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Bamboo Undershirts

Better than a vest

Next generation undershirts, climate control for your body
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The Oxford
Picture of a man wearing a Chester v neck undershirt in heather grey
The Chester
Long sleeve white micro modal undershirt
Long Sleeve Undershirts
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End-of-Line

Cool mornings, warm offices, unpredictable weather — autumn in the UK calls for smart layering. A quality undershirt is the secret to staying comfortable all day.

  • Regulate temperature: Stay warm without overheating.
  • Stay fresh: Sweat-proof protection against heat and central heating.
  • Invisible fit: Tailored to disappear under shirts and jumpers.
  • Work to weekend: From office suits to autumn walks.

Upgrade your base layer. Explore our Autumn Essentials and discover why UK men are switching to undershirts for comfort and confidence this season.

Shop Autumn Essentials

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Customer Reviews

★★★★★
Great, but I have a suggestion

I've bought a few undershirts from Robert Owen and they're always great quality, good value and delivered on time. However, if I could make one suggestion it would be to create a third type of neckline which was a v-neck but not as deep as the existing one.

September 2025
★★★★★
A high quality undershirt that fits for purpose

I have been looking for a good quality undershirt that can contain my son's super sweaty armpits :D (sorry son). I'm just fed up with the extra effort that I have to put every time I wash his shirts, it's not helping his favourite colour is white. I found the website by accident and I'm happy that I found it as the product is just what he needs. It's comfortable and effectively keeping his sweat under control.
The website is easy to manouvre around and goods sent on time.
Happy with the whole experience.

September 2025
★★★★★
Comfy

Brave new world. I’ve never felt so comfortable wearing a shirt, hell I even tried it under a thicker henley and it was great. First experience with undershirts in general. Great service from Robert Owen as well, I’ll be back.

August 2025

Browse all Undershirts

Picture of a man wearing an Oxford undershirt in white
The Oxford
Picture of a man wearing a Chester v neck undershirt in heather grey
The Chester
Long sleeve white micro modal undershirt
Long Sleeve Undershirts
Man wearing white crew neck undershirt on a white backgound
End-of-Line

SO MUCH BETTER THAN A VEST

If you've not yet experienced a modern undershirt, you might think it to be a little old fashioned - something your grandfather might have worn. Things have moved on. The contemporary men's undershirt is a technical base layer designed for everyday wear, in the office or home.

Breathable, lightweight modern stretch fabrics such as viscose and micro modal and body-contouring design have combined to update the humble vest, turning it into a performance base layer you can wear in the office.

The modern undershirt is as related to the basic cotton vest of old, as a Nike sports trainer is to a 19th-century leather boot. It's an entirely different beast.

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A PROBLEM SOLVED

It all began because I needed to solve my own problem. I needed an underlayer that stopped my sweat showing on my shirts at work.

I wanted something I could wear all day, that wasn't bulky, didn't make me feel hot and didn't ride up and, importantly, absorbed my sweat on hot days. I couldn't find it, so I decided to make my own. The Oxford undershirt was born. We made a few, and they sold out. So we made more.

We had no idea it would take off as it has - it seems I wasn't alone in needing this solution. Seven years and three product design iterations later, we think we make the best men's undershirts in the UK.

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ONLY SOLD HERE

You probably haven't heard of us before. Robert Owen® is a small independent British brand which I started with my partner in 2013.

All designs are exclusive to Robert Owen® and are only available here in our on-line shop - you won't find our undershirts anywhere else.

We design the undershirts in-house because we are fussy about the fit, fabric and function. We don't cut corners.

Take the fabric, for example. Many men's underwear makers mix in cotton because it's cheaper. We don't because we think a cotton mix feels bulky and less refined.

Our undershirts cost a little more, but the feel is worth it.

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