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  • Merino

Bjork ML 140 Women

The lightweight base layer
Sale price CHF 109.00

In stock

Color: Grey Zinal
Spend CHF 175 to get free shipping
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Composition

96% merino wool / 4% elastane

Origin and traceability

Our merino wool comes from Australia. The non-mulesed (NM) status is certified by AWTA.

Brand designed and developed in Switzerland.

Fabrication

Made in: RPC

Technical specifications

  • Grammage: 140 g/m²
  • Fiber fineness: < 19.5 µ
  • Temperature range: +5 °C to +20 °C
  • Fit: Close to the body

Care tips

• Wash at a maximum of 30°C on a delicate cycle
• Use a mild detergent, ideally one designed for wool
• Place the garment in a laundry bag before machine washing
• Wash with similar colors
• Avoid fabric softener, bleach, and harsh products
• Do not tumble dry
• Lay flat to air dry
• Gently reshape the garment to preserve its shape and the softness of the fibers

Returns and Exchanges

For return and exchange requests, please submit your request through your customer account

Delivery

Your order is prepared within a maximum of 48 business hours, then delivered within 1 to 3 business days.

Delivery costs CHF 9 in Switzerland and Liechtenstein.

Track my order

The Bjork ML 140 is a lightweight and versatile base layer designed to adapt to all seasons.

Its merino wool composition ensures optimal breathability and effective thermal regulation, keeping you warm in cool weather and dry during intense activities.

Technical specifications

  • Merino wool: natural warmth, moisture management, and lasting comfort
  • Advanced thermoregulation: retains warmth in winter and wicks away moisture in summer
  • Breathability and quick drying for a lightweight feel throughout the day
  • Natural antibacterial properties that limit the development of odors
  • Optimized seams for lasting comfort and reduced irritation

Perfect for

Hiking, trekking, skiing, snowboarding, running, cycling, travel, and all outdoor activities.

Benefits of merino wool

  • Smart thermal regulation: comfort in both warm and cold weather
  • Moisture management: quickly absorbs and wicks away perspiration
  • Natural odor resistance: extended wear without losing freshness
  • Soft, natural comfort: pleasant against the skin, with no itching

Fjork Merino commitments

At Fjork Merino, we are committed to sustainable and responsible production.

The Bjork ML 140 is made with mulesing-free certified wool, ensuring animal welfare and environmental preservation.

Each product embodies our commitment to combining technical performance with environmental responsibility.

Find my size

Regular Midlayer

Updated chart: the old table showed the half-chest measurement. The new values are the chest circumference.

Indicative result based on your weight and height.

How to measure

Wear thin clothing and do not pull the tape tight.

Model 1.68 m / 60 kg wears M

Our Regular Midlayer cut fits true to size.

The chart is calibrated on body chest circumference (cm). Measure around the fullest part of your chest, under the arms, without pulling the tape tight.

2026 note: we have updated this chart. The previous version showed garment half-width. The new values are body measurements (chest circumference).

Our model is 1.68 m, 60 kg and wears M.

Frequently asked questions

What is a merino wool baselayer?

It is a first technical layer made of natural wool, designed to regulate body temperature and wick away moisture during exertion.

What are the advantages of a merino baselayer compared to synthetic?

It is naturally antibacterial, does not retain odors, and stays warm even when it is wet.

Can you wear a merino baselayer for several days without washing it?

Yes, merino wool neutralizes odors and stays fresh after several uses, you just need to air it out between outings.

Is it suitable for all seasons?

Yes, merino wool insulates from the cold in winter and remains breathable in summer thanks to its natural thermoregulating ability.

How to care for a merino baselayer?

Wash it at 30 °C on the wool cycle, without fabric softener or tumble dryer, then dry it flat to preserve the fiber.