Fibershirts

Men – Sweat Proof Shirt

4.4 | 167 Reviews

Regular: £29.00
Sale: £29.00
Regular
Unit Price: per

Colour:White

Neck:V-neck

Size:S

Size Chart in INCH

Choose the size you would normally choose or use the size chart below. Fibershirts have a normal fit, with a slight stretch that makes it a slim fit to your body.

Size
Chest Waist Hips

S
39
31 35

M
41

33
37

L
43

35

39

XL
45
37

41

XXL
47
39

43

1. Chest

Measure the full circumference of the chest 2.5 cm under the armpits.

2. Waist

Measure the full circumference of the narrowest/smallest point of the waist.

3. Hips

Measure the full circumference of the widest / fullest point of the hips.

Size	Chest	Waist	Hips
S	39	31	35
M	41	33	37
L	43	35	39
XL	45	37	41
XXL	47	39	43

XXL

- +

Besteld voor 23:59, morgen in huis

GRATIS verzending door PostNL

30 dagen bedenktijd

100% Protection

The best undershirt. Ever.

You want a natural solution against sweat stains? Without side effects? You want to increase your confidence and experience a liberating and carefree feeling? We are here to help you.

Technology

How does it work?

The sewn-in armpit pads consist of three different layers. The inner layer consists of a water-resistant material that blocks sweat.

Fibershirts also consist of 95% MicroModal® fibers and 5% spandex. This material is silky smooth and cooling to the skin.

75%
more absorbent than normal cotton

3x
softer than normal cotton

FAQ

Frequently Asked Questions

Which size should I order?: Choose the size you would normally choose or use the size chart at the top of the page. Fibershirts have a normal fit, with a slight stretch to fit your body perfectly.
What material are Fibershirts made of?: Fibershirts consist of 95% MicroModal® fibers and 5% spandex. This material is silky soft and cooling to the skin. MicroModal® is completely CO2-neutral and sustainably produced. The armpit pads consist of 3 layers, the middle one is water resistant.
What is the delivery time?: Orders placed before 23:59 are shipped the same day. The delivery time for the UK and Ireland is 3-5 working days. As soon as the order has been placed you will receive an e-mail with a track-and-trace code.
Do the armpit pads really work?: YES - We guarantee that Fibershirts protect you against sweat stains. The water-resistant layer in the armpit pad stops every drop of sweat. Not satisfied = money back.
Do Fibershirts also help against sweat in places other than the armpits?: Due to the cooling, absorbent, and light material, sweat spots will be less visible. However, the waterproof armpit pads are exclusively designed for sweat spots under the armpits.
Do Fibershirts also protect against sweat odours?: YES - No stinky sweat odours thanks to our SILVADUR™ technology. This is a special silver treatment that kills 99.9% of all odour-causing bacteria. This allows you to wear Fibershirts and dress shirts multiple times.

Trustpilot

What do our fans think?

4.4 / 5 based on 167 reviews

Excellent

Add review

Mario Bontick

2022-17-07

Verified

Shirts stay dry

Fantastic product! Shirt stays dry, no more annoying sweat spots under the arms. I ordered 1 to try first but will order a few more. Note: you still sweat under the arms but at least there is no wet on your shirt. No more uncertainty and stress of whether or not sweat spots are visible. It really does what it promises and that is to stop moisture. I'm super happy with it!!!!!! And no, I'm not ashamed to say that I use this product, hence my full name is allowed on it. I was more ashamed of my sweat stains!

2022-07-12

Verified

Sold Out

Often sold out and delivery sometimes takes longer than promised. Bought my 3rd piece and I’m still happy with it, even though it is 38 degrees Celsius outside, my shirt stays dry

Keesky

2022-27-03

Verified

Good product

Good shirt. It fits nice, comfortable, and slim. It does what it's supposed to do. It keeps you cool when you get hot, and it dry you warm when you sweat. No more sweat spots under your arms or wherever.

ANONonymous

2022-01-06

Verified

What an invention!!

What an invention - this is really unbelievable. Thank you very much. Greetings from a satisfied and above all, a returning customer!

Peter J.

2022-10-04

wait 2 days

I live in Ireland, on the website it says next day delivery!! After 3 days of waiting, my package finally arrived... delivery could be better

Jeffrey

2021-25-01

Verified

Price/quality ratio

Excellent Value for money, good product for this price.

Dennie

2021-02-02

Verified

Recommended, I don’t regret buying

At first I was very skeptical about the shirt, but now that I use the shirt, I am very happy that I bought it. No more sweat spots under my armpits. Amazing product

Patrick S.

2021-10-07

Verified

Very positively surprised

I was also positively surprised. Thin and soft t-shirt that does exactly what it promises: keeps sweat stains and a nasty smell away. The fit is just like any other t-shirt. In addition, compliments on the very fast delivery. Ordered two shirts twice, and they really arrived the next day. The shirts are delivered in a nice packaging. I wonder if it works / is comfortable to wear when it is 25-30+ degrees Celsius. But for the winter, fall, and spring this is a great solution.

Robert E.

2022-09-03

Verified

I should have known about this sooner

Really great shirts!! I'm very happy with them!

FERD

2021-01-03

Verified

Fast delivery

Superb! The shirt does exactly what you expect. Compliments on the delivery, it was delivered the next day

Gentrit F.

2021-12-03

Verified

Fine.

Fits fine and no sweat spots visible!

Armpit sweats

2021-24-06

Verified

Absorbent and soft

Very nice shirt, does not add heat, absorbs sweat very well and ensures that your polo or shirt stays dry. The only drawback is that the armpit pads are not big enough or my armpit sweats differently than others but towards the chest may extend the pad a little longer.

Boris

2021-15-03

Verified

Perfect!

Works perfectly

Thomas

2021-19-03

Verified

No odors, no stains

I Always suffer from sweaty armpits at work. It drove me crazy. Tried many different deodorants, but often the smell already gets into the undershirts. This shirt, on the other hand, has solved the problem! You don't see sweat stains and the shirt stays free of odors.

Ralf

2021-07-12

Verified

Amazing shirts with fast delivery

Pleasant shirts, fast delivery. No more sweat odours and wet spots on my shirts. The shirts are quite slim fit.

Diego

2021-28-03

Verified

Nice solution for sweat stains

Even after a heavy bootcamp training I was still spring fresh. I still have to experience what they are like after a few washes, but for now it couldn't be better in my opinion. A long-sleeved version would be nice for the winter, for example under a woolen sweater.

Bob

2021-30-03

Verified

Got my confidence back :)

Really great shirts! My shirts/polos are completely dry all day. It may sound a bit dramatic, but I really got a lot of confidence back.

Charles

2019-15-11

Verified

Great Asset

Really a great asset. Why didn't I know about this before? It took some getting used to in the beginning, especially for its use case. But before you know it, you don't notice it anymore. Recommended.

Mick

2020-12-04

Verified

I wear it every day

Great shirt, I wear it every day! No more stains on my shirt, and my clothes don't smell anymore! Highly recommended for everyone!

Paul

2020-30-05

Verified

Perfect for under suit

I wear a lot of shirts during my customer visits and regularly had sweat stains that were visible. These T-shirts are the best solution so far. I walked in the sun all day without even 1 visible sweat stain. Top product!

Nils

2020-09-06

Verified

Comfortable and soft

I even wore the shirt twice in a row as a test and my clothes still didn't smell. What is also striking is that the shirt is very soft and comfortable to wear. The purchase price is a bit higher, but that's also back in quality.

Ilona

2021-10-04

Verified

Good T-Shirt

Good shirts, they help well

2021-03-06

Verified

Happy

Does what it says. Happy with it.

Sven Koning

2021-26-03

Verified

No more sweat stains

Really great, no more sweat spots

HEIN

2021-17-02

Verified

Ik ben zweetplek-vrij

Werkt goed, geen zweet plekken meer te zien 👍

Martin

2020-22-09

Verified

Stay completely dry

I suffer from excessive sweating under the armpits. Thanks to the undershirt I can keep my shirt 100% dry! fantastic!

Tom

2020-12-06

Verified

Nice alternative and sustainable

Unbelievable, just when I think to go for that medical procedure, because I'm tired of always having those annoying wet spots under my armpits, I ran into these fantastic t-shirts. Works really well, hugely recommended!

2021-07-12

Verified

Ordered 2 extra fibershirts

Great shirt, no false promises. Ordered a few extra.

2021-03-12

Verified

Very satisfied

I suffer from excessive sweating under the armpits, thanks to this shirt I no longer suffer from this at all! I am very satisfied with it. The shirt itself is comfortable and does not retain heat. I first bought one to test it, and I'm so pleased that I ordered a few more right away!

2021-07-12

Verified

Great!

One word: great!

Stef

2021-07-12

Verified

Safe solution

What a solution. No more dark sweat stains on my shirt. Not even after a long day of tension.