Bamboo Undershirts

Better than a vest

Next generation innerwear to keep you looking and feeling good.

As Seen In

Logo of Men's Fitness magazine
Logo of GQ

Customer Reviews

★★★★★

Best undershirt ever

The buying experience was very simple and smooth. Ordering and paying took only a few minutes.

The undershirts are of excellent quality. The fit and the fabric used to make them are a cut above what you find in the mainstream department stores. I'm happy to recommend them.

Anonymous
May 2025
★★★★★

Tried and tested

I purchased one and tried a few times at work in warmer weather to see if it a) worked and b) would help me attending a wedding in Spain. I am not one for reviews, to be honest, but I was so impressed. I am not saying it stopped me sweating — it more made it feel far less, and instead of being patchy, I would say it more felt like it spread it throughout the T-shirt, and I had next to no patches, and it was 30+ degrees.

Anonymous
June 2025
★★★★★

Not cheap but totally worth it

Bought white and heather grey, which you can't see under a white shirt. Absorbs all the sweat and no smell. Helps prolong the life of your shirts. Great customer service when I needed to exchange quickly.

Anonymous
May 2025
★★★★★

Smart undershirt

Bought the heather grey for my husband. The undershirt is practically invisible under a white shirt, even a very thin one. Hubby is pleased with it, as the undershirt is also very soft on the skin.

Anonymous
May 2025

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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