In-house fabric innovation
Premium European quality
Responsible wool
Personal size support
Oscar merino T-shirt
✔️ Durable ClimaForce yarn resists thinning and micro-holes.
✔️ Lightweight, breathable thermoregulating comfort.
✔️ Naturally odour-resistant.
- ClimaForce merino: 80% merino wool / 20% nylon. Our unique yarn is specifically developed to prevent holes.
- Superfine merino wool : 17,5 micron
- At 170 g/m², the fabric has an ideal all-round weight.
- The T-shirt is prewashed and will not shrink anymore.
- The T-shirt has a regular fit, not slim or loose. If you prefer to have it more fitted, size down. Size up if you want to have it more loose.
- Our model Henri is 188 cm high and has a chest of 98 cm and a waist of 80cm. He wears size Large.
- Please use our size charts in the SIZE FINDER or reach out to us via email or chat for personal help.
- We use mulesing-free merino wool.
- Our merino wool is certified with the Responsible Wool Standard, RWS.
- OEKO-TEX® Certified Fabric: Sourced from our Portuguese mill partner and tested free from harmful substances.
- Wash less because of the anti-bacterial properties of the merino wool.
- Read more about our sustainable approach
- The fabric is knitted by experts in Portugal.
- Designed in Belgium.
- The T-shirt is made with care in Portugal.
We use total easy care merino wool
- Wash at a 30°C delicate or wool program, max. 1400 cycles
- Wash with wool detergent
- Do not use fabric softener or bleach
- We advise to put it into a wash bag
- Hang to dry, do not tumble dry
- More specific care tips and stain removal tips you can find at garment care
Uncompromising Durability Meets Effortless Style.
Designed for the modern wardrobe, the Wolk Oscar merino T-shirt pairs refined minimalism with unmatched longevity. Whether you're packing for an international business trip or stepping out for a weekend hike, it consistently delivers a sharp, tailored look.
The foundation of its strength is ClimaForce yarn, our proprietary technology engineered to prevent the pilling and holes typical of standard merino. Naturally breathable, odor-resistant, and crease-free, the Oscar offers effortless sophistication that lasts season after season.
T-Shirt size guide | Wolk
Compare a garment you love with our size charts and find your perfect size.
The Oscar and Victor T-shirts have the same fit and sizes. They are prewashed and will not shrink anymore.
HOW TO MEASURE YOUR T-SHIRT
A.CHEST: Measure straight across, 2.5 cm (1 in.) below where the bottom of the sleeve meets the body.
B. WAIST: Measure straight across at the narrowest part of the garment. If no waist is defined, measure halfway between the armpit and the bottom of the shirt.
C. SHOULDERS: Measure straight across the front of the garment, from the outside edge of one shoulder to the other.
D. LENGTH: Measure straight down from the highest point of the shoulder (where the collar meets the body) to the bottom.
T-shirt sizes
| XS | S | M | L | XL | XXL | XXXL | |
|---|---|---|---|---|---|---|---|
| A. CHEST | 46 cm | 49 cm | 51.5 cm | 54 cm | 56.5 cm | 59 cm | 62 cm |
| B. WAIST | 44.5 cm | 47 cm | 49.5 cm | 52 cm | 54.5 cm | 57 cm | 60 cm |
| C. SHOULDERS | 40 cm | 41.5 cm | 43 cm | 44.5 cm | 46 cm | 47.5 cm | 49 cm |
| D. LENGTH | 68 cm | 69 cm | 70 cm | 71.5 cm | 73 cm | 74 cm | 75 cm |
Please use this guide as a general guide for garment measurements. All garment measurements may vary slightly and are approximate.
Still fresh even after 4 days. And such a nice and sturdy fabric.
True, it’s not exactly a cheap t shirt, but you really get your money's worth.
After years they still look like new! My T-shirt for every moment, every day.
I'm blown away by the quality! I have other merino T-shirts, but the quality of the Wolk T-shirts is on a different level.
The story behind our merino wool T-shirts
From responsibly managed merino sheep farms to elite Portuguese textile mills and ethical tailoring, our supply chain is built on transparency, craftsmanship, and a complete refusal to compromise on quality.
Innovative merino yarn: 30% stronger, pill-resistant.
We’ve perfected our merino yarn down to the very last fiber. Our ClimaForce fabric is 30% stronger than standard merino wool T-shirts, reinforced with a fine nylon filament for ultimate durability.
Designed in Belgium
We craft comfortable garments designed to last. Leveraging our expertise from the outdoor industry, we start with the very best materials, yarns, and manufacturers. After months of extensive testing and refinement, we guarantee a final product that performs flawlessly and feels great, day after day.
Knitted in Portugal.
We choose Portugal for its textile heritage, expert craftsmanship and commitment to EU labor and environmental standards.
Tailored by Portuguese experts
Our superior quality comes from a close partnership with dedicated family-owned businesses. Crafted locally under rigorous European labor and environmental laws, every piece reflects an uncompromising respect for both the artisans and the planet.
Happy Merino sheep
Our Merino wool T-shirts use RWS-certified wool—ensuring animal welfare (mulesing free), land protection, and full traceability from farm to finish.
Innovative merino yarn: 30% stronger, pill-resistant.
We’ve perfected our merino yarn down to the very last fiber. Our ClimaForce fabric is 30% stronger than standard merino wool T-shirts, reinforced with a fine nylon filament for ultimate durability.
Designed in Belgium
We craft comfortable garments designed to last. Leveraging our expertise from the outdoor industry, we start with the very best materials, yarns, and manufacturers. After months of extensive testing and refinement, we guarantee a final product that performs flawlessly and feels great, day after day.
Knitted in Portugal.
We choose Portugal for its textile heritage, expert craftsmanship and commitment to EU labor and environmental standards.
Tailored by Portuguese experts
Our superior quality comes from a close partnership with dedicated family-owned businesses. Crafted locally under rigorous European labor and environmental laws, every piece reflects an uncompromising respect for both the artisans and the planet.
Benefits of our merino wool T-shirts
Stay fresh for days
Durable
All-Season Comfort
Maximum Airflow
Soft to the skin
UV-defence
ClimaForce merino: The comfort of merino wool, minus the holes.
We’ve fixed the biggest flaw in wool T-shirts.
With our custom-developed ClimaForce yarn, our tees offer the signature performance of merino wool while eliminating the typical fragility. By reinforcing the core of luxurious superfine merino with a fine nylon filament, we’ve created a shirt built to last. Our customer reviews speak for themselves.
Why is Wolk's merino wool T-shirt worth the money?
Our merino wool T-shirts are not only stronger and more durable than other merino wool T-shirts, they outperform all your other cotton, synthetic and chemical treated T-shirts.
FAQ- Merino wool T-shirt for men with crew neck or V-neck
Why don't you use 100% merino wool in these T-shirts?
While we appreciate the purity of 100% merino wool, we prioritize longevity above all else. That’s why we developed a reinforced merino yarn, the ClimaForce merino yarn. We have customers still wearing T-shirts purchased seven years ago—proving that making better, longer-lasting apparel is the truest form of sustainability.
What makes Wolk merino wool T-shirts better than some other merino T-shirts?
Wolk merino wool T-shirts outperform other merino T-shirts:
- Engineered Strength: Our ClimaForce yarn delivers unmatched durability and long-lasting wear.
- European Precision: Responsibly crafted in Europe under the world’s strictest social and environmental standards.
- Purely Ethical: 100% RWS-certified, mulesing-free wool.
Are these merino wool T-shirts machine washable?
Simply machine wash your merino T-shirts at 30°C. For maximum longevity, always use a wool-specific detergent; standard enzyme detergents can slowly break down the natural wool fibers.
Where are Wolk's merino T-shirts made?
Ethically made in Portugal, Wolk merino T-shirts are the result of conscious craftsmanship. From our expert jersey knitters to the small, family-owned atelier that assembles each shirt, our partners operate under strict EU standards, guaranteeing fair wages and excellent working conditions.
Where is Wolk's merino wool coming from?
The premium merino wool used in our T-shirts is sourced from Australia and carries the Responsible Wool Standard (RWS) certification. This guarantees that our wool is produced with the highest ethical standards, ensuring the welfare of the sheep and the protection of the land they graze on.
Can I make an exchange if the size is not correct?
Sure!
Simply place a new order and indicate in the return portal that you would like an exchange. If you used a welcome discount on your original order, please email us to receive a new code.
You can create a return label on our returns page.
Within the EU:
- Return for exchange: your return and exchange shipment are free.
- Return a few pieces of your order: free.
- Return for full refund: €9
Outside the EU:
- Return for exchange: free for return shipment.
- Return a few pieces of your order: check prices on our return page
- Return for full refund: check prices on our return page
We’d love to help you avoid the hassle of returns! Our size guides are incredibly easy to use. Simply measure a T-shirt from your wardrobe, compare it to our measurements, and you’ll get the perfect fit the very first time.
