Casual T-shirts

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Casual T-shirts

Casual, stylish and smartly chosen

Our casual T-shirts are designed for men who combine effortlessly: comfort for every day, with a look that is always right.

  1. The casual fit provides a natural, masculine look that falls neither too loose nor too tight.
  2. Made of a durable blend of 50% TENCEL™ Lyocell and 50% organic cotton. Soft, breathable and environmentally friendly.
  3. Just a little longer than average, so your T-shirt always falls nicely over your belt and stays perfectly in place, even after wearing it all day.

This premium fabric not only feels smooth and light, but also stays in top shape wash after wash. Subtly finished with our ton sur ton branding on the chest and designed without fuss, for a clean look with character. Wear it solo or under a jacket, this casual T-shirt effortlessly adapts to your day. Like a true Meister does.

Casual T-shirts

Casual T-shirts.

Durable, stylish and ready for every day use

At Undiemeister, it's all about conscious choices: in style, in comfort and in impact. That is why our casual T-shirts not just any T-shirts, but a logical extension of our mission to offer the most sustainable assortment possible. Each shirt is made from a high-quality blend of 50% TENCEL™ Lyocell and 50% organic cotton, a combination that not only feels wonderfully soft, but is also produced carbon-neutral and completely responsibly.

The casual fit creates a relaxed, masculine look, while the slightly longer length falls just over your belt for a groomed look that stays put as it should. Perfect for every day, every occasion and every season. Whether you work from home, go out on a terrace or just want to look comfortable, this shirt adapts effortlessly.

Undiemeister stands for more than just clothing. We bring quality, appearance and durability together in every item. And you feel that as soon as you put on our T-shirts. No concessions. No empty claims. Just honest and good, the way it should be.

Casual T-shirts.

Casual T-shirts from Undiemeister: everyday class

A good T-shirt does more than dress you, it supports your day. Undiemeister's casual T-shirts are designed for men who know that style starts with simplicity. No prints, no trends. Just timeless design, masterful fit and unsurpassed comfort.

Made from our signature Mellowood fabric, each T-shirt combines premium softness with durable performance. For home, work, travel or travel, this is your go-to shirt for every day.

The look of casual, the comfort of Undiemeister, the class of simplicity.

What makes a casual T-shirt really good?

Casual T-shirts are designed to go with everything, from jeans to chinos, blazers to swim trunks. But then they have to be right in every detail.

Our men's casual T-shirts combine:

  • A slightly tailored fit that's always right
  • All-season breathability
  • Silky soft fabric that feels natural to the touch
  • Timeless colours without bright prints or eye-catching logos

One T-shirt, endless wear moments.

Mellowood: the fiber that goes beyond cotton

All of Undiemeister's regular fit T-shirts are made from:

  • 50% TENCEL™ Lyocell
  • 50% organic cotton

The benefits?

  • Silky soft, without a synthetic feel
  • Breathable and quick drying
  • Anti-odour and antibacterial
  • Hypoallergenic also for sensitive skin
  • Shape and colourfast, even after frequent washing

Wearing it once is enough to never want to go back.

For those who move, work, relax and live

Whether you are at your laptop or standing on a terrace, sitting in the car or walking through the woods a casual T-shirt has to adapt. Thanks to Mellowood's natural thermo control, you experience:

  • Freshness when warm
  • Warmth when cold
  • Dryness when perspiring
  • Frictionless comfort, even on long days

Casual in style. Technical in performance.

The collection of casual T-shirts for men

Our collection consists of:

  • Round neck T-shirts timeless and always good
  • Regular fit fits nicely without pinching
  • Stylish and timeless colours Chalk White, Volcano Ash, Mountain Sky
  • Sizes from S to XXXL
  • Single pieces and discounted Summer Deals

The foundation of your wardrobe. But at Undiemeister level.

Durable down to the fibre

  • TENCEL™ Lyocell from FSC-certified wood
  • Organic cotton without pesticides
  • CO₂-neutral production in Europe
  • Plastic-free, recyclable packaging
  • Long lifespan = less waste

Sustainable wear starts with thoughtful choices.

Smart combining = more than convenience

Our casual T-shirts are available in:

  • 2-packs ideal for rotation and advantage
  • Bundle packs with swim trunks

Think less, wear smarter. Better for your closet and your skin.

Order casual T-shirts today for men who feel the difference

  • Made from Mellowood: TENCEL™ Lyocell, organic cotton
  • Stylish, breathable and temperature regulating
  • Perfect for every day, every moment
  • Available in bundles or separately
  • Sustainably produced, stylishly packaged

Casual never has to be standard. Not at Undiemeister.

T-shirts without unnecessary noise

Undiemeister's casual T-shirts for men prove that you can say more with less. Comfort, style and technology packed into one smart T-shirt.

FAQ

Frequently Asked Questions

Man met wit T-shirt met ronde hals en groene boxershort zit op bed en trekt grijze lange sokken aan

Are they suitable as a top layer?

Definitely, they are designed to be worn as an independent garment without looking like underwear.

Are they suitable for sports?

You certainly can, thanks to the breathability and unique properties of the fabric, use them for sports.

Do they stay beautiful after frequent washing?

Yes. Mellowood is colour and shapefast. Even after dozens of washes, the shirt remains soft and beautifully shaped.

Is it suitable for hot days?

Absolutely. Thanks to Lyocell and organic cotton, you stay dry, airy and fresh - even in higher temperatures.