Merino Shirt Guide

You can find a Wolk shirt for every body-type and every occasion.

The shirt fits

Whether you're athletic or a bon vivant, don't worry, we have something for every body-type. Below you can see the different fittings and you can compare them to each other.

> Please note that the fits are European fits and are smaller than US, DE or UK sizes. <

Our SIZE FINDER can help you to find your perfect size.

This is a SLIM fit shirt

  • Fitted at chest and waist.
  • Slim - not tight.

Comes in Alex, Tristan & Oliver merino styles.

SLIM fit <=> REGULAR fit
  • Bit smaller on the shoulders.
  • Smaller on chest, waist, and bottom.
  • Longer in length.
SLIM fit <=> RELAXED fit
  • A lot smaller on chest, waist, and bottom.
  • Smaller in length.

This is a REGULAR fit shirt

  • More casual fit, shorter length, made to be tucked-in or untucked.
  • Wider at chest and bottom.
  • Wider, but still defined waist.

Comes in Arne merino style.

REGULAR fit <=> SLIM fit
  • A bit wider on the shoulders
  • Wider at chest, waist and bottom
  • Shorter in length
REGULAR fit <=> RELAXED fit
  • A bit wider on the shoulders.
  • Smaller at chest, waist and bottom.
  • Shorter in length.

This is a RELAXED fit shirt

  • Straight cut.
  • Wider at chest, waist and bottom.

Comes in Alex, Tristan, Ezra & Oliver merino styles.

RELAXED fit <=> SLIM fit
  • Same on the shoulders.
  • A lot wider at chest, waist and bottom.
  • Longer in length.
RELAXED fit <=> REGULAR fit
  • A bit smaller on the shoulders.
  • Wider at chest, waist and bottom.
  • Longer in length.

The shirt collars

Classic collar

This collar is one of our most popular and versatile collars. Designed for any style, with or without tie.

Italian-Spread collar

Italian-spread collar is made for business casual and smart casual. The opening between the collar tips allows a wider tie knot, but a slim tie.

English-Spread collar

English-spread collar is our most sophisticated collar. Perfect for any tie or bowtie.

Button-down collar

As the name implies, this collar has buttons that hold the tips down. Initially designed for polo players to keep the collar out of their face when riding, this collar is truly a piece of shirt history.

The shirt styles

The different styles are not available in all shirt fits.

To find your perfect size, please use our SIZE FINDER or contact us.

Alex merino shirt

  • The Alex is our best-selling merino shirt, featuring a timeless classic collar and placket behind the buttons.
  • Available in slim and relaxed fits
  • It effortlessly transitions between casual and formal looks.
  • Wear it with or without a tie, tucked in or untucked—versatility at its finest.

Tristan merino shirt

  • The Tristan shirt features an Italian spread collar, offering a sleek and modern look.
  • Available in both slim and relaxed fits, it ensures a perfect fit for every body type.
  • Wear it with or without a tie, tucked in or untucked
  • Sitting between the casual elegance of the Alex shirt and the formality of the Oliver shirt, Tristan strikes the ideal balance for versatile styling.

Oliver merino shirt

  • The Oliver merino shirt is our most sophisticated design, featuring a structured spread collar that offers a refined and polished look. Its collar is sturdier than those of the Tristan and Alex shirts, ensuring it holds its shape perfectly.
  • Available in both slim and relaxed fits, the Oliver shirt provides an ideal fit for every body type.

Arne merino shirt

  • The Arne shirt is available in a warm merino flannel and an all season denim look.
  • It comes in a our casual regular fit which is smaller than the relaxed fit and gives room to the chest but is more fitted at the waist. 
  • Wear it untucked or tucked in.
  • Not suited for a tie.

Ezra merino shirt

  • The Ezra merino wool shirt comes only in relaxed fit.
  • The straight cut hem gives it a modern contemporary look.
  • Wear it untucked.
  • Not suited for a tie.

The shirt quality

One touch is all it takes to realize this isn't your average wool. Our journey took years of sourcing the finest Merino fabric and partnering with the right makers to get this shirt right.

No compromises, no shortcuts—just a premium wool shirt crafted with intent.

Sheep grazing on a grassy hill with snow-capped mountains in the background located in New Zealand
quality in every step
Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 1.

Happy Merino sheep make the best wool

We select the most premium wool from ZQ certified farms in New Zealand—ensuring animal welfare, land protection, and full traceability from farm to finish.

Close-up of blue fabric with folds
quality in every step
Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 2.

Italian Mastery: The Secret to Our Woven Merino

Partnering with Italian experts, we blend 150 years of mastery with cutting-edge compact spinning. This transforms superfine Merino into a fabric of unparalleled smoothness, creating a shirt with a feel unique to the industry.

Person measuring a navy shirt on a table with a ruler Wolk merino wool garments are designed in Belgium
quality in every step
Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 3.

Designed in Belgium

We build products for long-term comfort and durability. Leveraging our expertise from the outdoor industry, we start by finding the absolute best materials, yarns, and manufacturers. Through months of detailed testing and fine-tuning, we guarantee a final product that performs flawlessly and feels great, day after day.

Person sewing fabric with a sewing machine, close-up of hands and machine.
quality in every step
Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 4.

Tailored by Portuguese experts

Precision and quality are paramount. That’s why we partner with a skilled family-owned atelier in Portugal. Their dedication and remarkable eye for detail ensure the superior finish of every shirt we create.

Buttons in white and brown on a white background with two large brown corozo nuts.
quality in every step
Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 5.

Corozo buttons: natural & durable

Our buttons are carved from the Corozo nut—the fruit of the Tagua palm often called "Vegetal Ivory" for its incredible hardness. Unlike mass-produced plastic, this organic nut is scratch-resistant and exceptionally durable.

quality in every step
Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 1.

Happy Merino sheep make the best wool

We select the most premium wool from ZQ certified farms in New Zealand—ensuring animal welfare, land protection, and full traceability from farm to finish.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 2.

Italian Mastery: The Secret to Our Woven Merino

Partnering with Italian experts, we blend 150 years of mastery with cutting-edge compact spinning. This transforms superfine Merino into a fabric of unparalleled smoothness, creating a shirt with a feel unique to the industry.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 3.

Designed in Belgium

We build products for long-term comfort and durability. Leveraging our expertise from the outdoor industry, we start by finding the absolute best materials, yarns, and manufacturers. Through months of detailed testing and fine-tuning, we guarantee a final product that performs flawlessly and feels great, day after day.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 4.

Tailored by Portuguese experts

Precision and quality are paramount. That’s why we partner with a skilled family-owned atelier in Portugal. Their dedication and remarkable eye for detail ensure the superior finish of every shirt we create.

Rating of 1 means .
Rating of 5 means .
The rating of this product for "" is 5.

Corozo buttons: natural & durable

Our buttons are carved from the Corozo nut—the fruit of the Tagua palm often called "Vegetal Ivory" for its incredible hardness. Unlike mass-produced plastic, this organic nut is scratch-resistant and exceptionally durable.

How to find your size?

Everyone wears their clothes differently. Our shirts have EU sizing, so they might be smaller than US,UK or DE sizes.


That is why we ask you to compare a garment you already own with our sizes.

Check our measurement chart below.

Need support?

Get in touch via:

MAIL: hello@wolk-antwerp.com (answer within 24 hours)

CHAT: Mon-Fri from 8am until 9pm