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  • Free boxer shorts on orders over €100
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Longsleeves

Round Neck Longsleeves Round Neck Longsleeves Longsleeve T-shirts V-neck Longsleeve T-shirts V-neck Short sleeve T-shirts Short sleeve T-shirts
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Longsleeves

Smart, functional and stylish in every detail

Our longsleeves are designed for men who take their underwear seriously - without compromising on comfort or appearance. They are the perfect layer under your outfit, with a fit that does exactly what you want it to do.

  1. The slim fit fits nicely to the body and wears like a second skin without pinching.
  2. Made from our patented fabric Mellowood: ultra-soft, breathable and temperature-regulating.
  3. Extra long model, so the longsleeve always stays snug in your pants - all day long.

Whether you choose black or white, round neck or V-neck, each longsleeve is designed with both functionality and style in mind. Invisible under your clothes, but indispensable in your daily comfort. As you would expect from Undiemeister: cleverly thought out, maximally durable, and always ready for every day.

Longsleeves

Longsleeves

The perfect layer with a sustainable mission

At Undiemeister, we believe that comfort starts with what you wear closest to your skin. That's why our slim fit longsleeves are designed as more than just undergarments, they are the silent force behind any stylish outfit. Made from our patented fabric Mellowood, consisting of TENCEL™ Modal, organic cotton and elastane, they combine ultimate wearing comfort with maximum durability. The production is completely CO₂ neutral and takes place in Europe, as you would expect from us.

The slim fit longsleeve fits your body perfectly without pinching, and thanks to the extra long model the longsleeve stays neatly in place no matter what you do. Available in black or white, with round neck or V-neck, so you'll always find the perfect match for your style and preference.

Undiemeister stands for a conscious lifestyle with an eye for detail. Our longsleeves are soft, breathable and stylish, but above all smartly chosen. For those for whom sustainability is not a trend, but a matter of course.

Longsleeves

Longsleeves from Undiemeister: masterful comfort with long sleeves

A longsleeve should be more than simply a T-shirt with longer sleeves. It should strike the perfect balance between warmth, breathability, style and freedom of movement. Exactly what you would expect from Undiemeister. Our longsleeves are designed for everyday wear, with just enough insulation for chilly mornings and breathability for active days.

Comfort as you know it from us, only with sleeves up to your wrist.

What is a longsleeve?

A longsleeve is a versatile long-sleeved garment, often worn as a top layer or as an undershirt under a sweater or jacket.

Undiemeister longsleeves are designed for:

  • Ultimate comfort in any season
  • Thermo control without getting too hot
  • A modern fit, slightly fitted, never tight
  • Functional enough for sports or work
  • Stylish enough for casual settings

Whether you go outside or stay inside, a longsleeve belongs in your basic wardrobe.

Made from Mellowood: for comfort that reaches further

Each longsleeve is made from our patented fabric Mellowood:

  • 68% TENCEL™ Modal
  • 28% Organic cotton
  • 4% Elastane

This blend provides:

  • Silky soft feel, no chafing
  • Breathability and odour control
  • Natural temperature regulation
  • Shape and colour stability
  • Hypoallergenic effect
  • Stretch without bulging

Advanced fiber technology, naturally executed.

Thermo control with long sleeves

Our longsleeves keep your body balanced:

  • Warm enough when cold or windy
  • Airy enough when exercising or indoors
  • Quick-drying and comfortable even after exercise
  • No overheating, no sticky fabric

A long sleeve T-shirt that moves with you not the other way around.

Longsleeves men: more than basic

The Undiemeister longsleeve is designed for:

  • Casual days stylish without logos or busy prints
  • Under a jacket or jacket the perfect layer
  • Outdoor activities breathable, soft and supple
  • Traveling lightweight, odour-resistant and compact

Available in:

One shirt, endless wear moments.

Sustainable in fiber, production and packaging

  • TENCEL™ Modal from FSC-certified wood
  • Organic cotton for low environmental impact
  • European production, fair and carbon neutral
  • Plastic-free packaging, fully recyclable
  • Longer life, less consumption

Responsible production is not an option with us, but standard.

Combine longsleeves? Combine smartly

Our longsleeves are available in 3-packs and 6-packs, ideal to easily complement your wardrobe. Multiple options. Always the same quality.

Order today: long sleeves, longer wear.

  • Made of patented Mellowood
  • Breathable, odour resistant and temperature regulating
  • Slightly fitted and perfectly finished
  • Sustainably produced in Europe
  • Available in value packs and singles

Looking for a longsleeve? Then choose something that goes beyond basic.

Longsleeves for men with a sense of comfort

You're looking for men's longsleeves that do what they promise: comfortable, stylish, practical and durable. With Undiemeister, you choose the top layer that feels like underwear but looks like a style statement.

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 these longsleeves suitable for every season?

Yes. Thanks to their breathability and temperature regulation, you can wear them in any season - as a top layer or a mid-layer.

Is it really different from a regular long-sleeved T-shirt?

It is. The fit is optimized, the fabric more sophisticated and the workmanship more refined. Comfort and style come together here.

Can I also use them as sport shirts?

The longsleeves are not specifically designed for this, but their breathability and quick-drying properties certainly make them suitable for active use.

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.