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Byhappyme
Longjohns men’s base layer in 100% merino wool
Longjohns men’s base layer in 100% merino wool
1x1 rib
Buy 2 and save 20%
£49.95
VAT included
Merino wool underwear for men – warmth and comfort every day
Longjohns from Byhappyme are the perfect choice for men seeking maximum comfort, warmth and freedom of movement. These long underwear are made from 100% organic merino wool in a soft 1x1 rib, ensuring a flexible and close fit – ideal as a base layer all year round.
Natural warmth and softness
Merino wool is renowned for its temperature-regulating and breathable properties. Longjohns keep you warm on cold days and wick away moisture from the skin, keeping you dry and comfortable during outdoor activities, sports or just relaxing at home. The wool feels extra soft and pleasant against your skin.
Discreet design and great fit
Longjohns feature a classic, simple design that fits easily under jeans, work pants or ski trousers. The flexible ribbed quality and soft elastic waistband ensure they stay in place without pinching or irritation.
Quality you can trust
Like all Byhappyme products Longjohns are produced with a focus on responsibility and durability:
- OEKO-TEX® STANDARD 100 certified – free from harmful chemicals
- Woolmark certified – genuine high-quality merino wool
🤖Hi! I’m a little robot helper who helped Byhappyme write or translate texts. If I made a mistake, I’m sorry – I’m always working to improve.
- Brand: Byhappyme
- Textile material: 100% Merino uld
- Certifications: OEKO-TEX Woolmark
- Colours: Black Blue Melange Grey Melange Light Blue Melange Light Brown Melange Moss Melange Navy Melange
Can be washed in the washing machine and tumble dried on the wool programme. Byhappyme always recommends following the washing instructions and using wool detergent for merino wool products.
Wool detergent extends the life of the product.
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| Wash at 30 degrees |
Safe for tumble drying |
Wash with wool detergent |
Airing - a good alternative to washing
To preserve the life and appearance of the wool body, airing is an excellent alternative to frequent washing. Merino wool fibres have natural antibacterial properties that prevent odours and bacteria from penetrating the fabric. This means that the bodysuit with American closure can be used several times between washes, which saves you time and reduces wear and tear, extending the life of the garment. A thorough airing is often enough and helps refresh the wool, keeping it looking and smelling great for longer. This is not only more convenient, but also more sustainable as it reduces water and energy consumption when washing. Even after many months of use, the bodysuit will look almost new if cared for properly.
Avoid soaking
Wool is a natural material known for its thermal insulation and softness, but requires gentle care. Soaking can damage the fibres of wool by weakening or shrinking them. Therefore, wash wool gently on 800 revolutions in the washing machine with mild wool detergent and avoid prolonged soaking.
If you order before 13:00 PM on weekdays, your order will be shipped the same day.
Free shipping on orders over £49
Established in 2006
Delivery method:
Royal MAil - incl. Track & Trace
3-5 working days
UPS Express - incl. Track & Trace
1-2 working days
Temperature-regulating
100% organic wool
Safe for washing machine and dryer
Use together with
-20%
OEKO-TEX®
Byhappyme
Men’s merino wool set – long-sleeved t-shirt & longjohns 1x1 rib
£79.96
£99.95
-20%
OEKO-TEX®
Byhappyme
Long sleeve t-shirt for men in 100% merino wool
1x1 rib
2-pack
£79.96
£99.95
-20%
OEKO-TEX®
Byhappyme
Short Sleeve men's t-shirt in 100% merino wool
1x1 rib
2-pack
£63.96
£79.95
Wool
Frequently Asked Questions
Wool is a fantastic material with many benefits, including softness, warmth, and durability. Here you’ll find answers to the most frequently asked questions about wool. Didn’t find what you were looking for? Feel free to contact us.
Which Size Should I Choose?
Byhappyme’s wool textiles are true to size. Our best advice is to select the size you normally wear with other brands.
You can also make use of our size guide. Here, you'll get help and guidance to choose the correct size based on the data you enter.
How Do I Wash Wool Products?
Wash at 30°C on the wool program.
Use a mild wool detergent.
Tumble drying is allowed - Only for Byhappyme products.
Always follow the washing instructions.
Byhappyme recommends washing at 30°C and using a mild wool detergent.
Our wool series can be tumble dried, but it will keep its best appearance and shape if stretched while wet and laid flat to dry. The choice is yours, and both methods are equally correct.
Skip a wash if there are no visible stains. Wool regenerates itself, and airing it outdoors overnight can be a great alternative.
Are There Different Qualities of Merino Wool?
Yes, there are definitely differences, and it does matter which type of merino wool you choose for textiles.
Byhappyme uses some of the highest quality merino wool for our wool products.
When discussing wool and quality, the “fineness” of the wool quickly becomes a topic. The unit of measurement used for wool is called MICRON.
MICRON is an abbreviation for Micron, a unit used to describe the diameter of wool fibers. One micron is one thousandth of a millimeter (0.001 mm). When talking about wool, the micron measurement is used to assess the fineness of the fibers. For Merino wool, a lower micron measurement indicates a finer and softer quality.
Standard merino wool typically ranges from 20-23 microns, while fine merino wool falls between 18-20 microns. Byhappyme uses wool with a micron count of 19, placing it at the top end of the quality scale.
Why Does Some Wool Itch While Other Wool Doesn’t?
The finer the wool, the fewer coarse fibers it has, and therefore, it is less likely to itch. Most wool on the market today is treated to minimize itching, so the idea that wool itches is becoming a myth. However, individual sensitivity can vary.
If you find that wool itches, we recommend wearing the item for 10-15 minutes until it reaches body temperature. Once the wool is warmed to body temperature, many people find that the itching sensation disappears. Fortunately, we receive a lot of positive feedback from our customers about our Byhappyme quality. Many even express that the quality is surprisingly soft and comfortable to wear.
Is Your Merino Wool Certified?
At Byhappyme, we are proud to offer merino wool with 2 internationally recognized certifications. This is quite unique in itself.
It is also important for us to demonstrate responsibility towards our customers and their well-being. Environmental considerations are, of course, also important, and with these certifications, we can show a genuine interest in minimizing our environmental impact.
All of Byhappyme's wool products are covered by these 2 certifications:
OEKO-TEX®: Ensures that textile products are free from harmful substances and tested for health-damaging chemicals.
Woolmark: Indicates authenticity and quality of wool products that meet the standards for pure new wool, ensuring fiber content, durability, and comfort.
Our certifications are carefully selected and cover various criteria. If you would like to learn more, you can click through to read more about each certification.
Do Your Merino Wool Products Shrink?
Most natural materials shrink during washing, and merino wool is no exception. To be on the safe side, we state a maximum shrinkage of 8% in our care instructions, but our actual tests show a shrinkage of 2-3% when the item is treated correctly according to the recommendations. This is on the lower side, and we are naturally proud of it.