100% Merino Wool - Midweight · 250 GSM

Women's Merino Thermal Set 250 Olive

4.85179 reviews
$99.99
Fabric weight

250 GSM is our everyday cold-weather standard — warm enough for winter city days, breathable enough for the trail.

Size: XS

True to size · close, next-to-skin fit.

  • Free shipping over $49.99
  • 30-day easy returns
  • Ships in 1–2 business days
Discounted variations of this product are part of our final sale/clearance and are not eligible for return or exchange.
Description

Combination of warmth and comfort

Crafted from premium merino wool, this set provides exceptional insulation and a snug fit.

Whether you're braving the cold outdoors or enjoying a cozy evening indoors, this versatile set offers both style and coziness.

Elevate your winter wardrobe with this essential addition!

Care

Washing and Drying Instructions

  • Turn Inside Out
  • Machine Wash Cold: Gentle cycle with like colors
  • Detergent: Mild or wool-specific
  • Lay flat to dry
  • Storage: Wash before storage and keep in a dry place, using airtight containers or vacuum-sealed bag to prevent moth.
  • Do NOT Use: Fabric softener or bleach!
Guarantee
  • 30 Day Satisfaction Guarantee
  • 1 Year Warranty

THE FABRIC

WHY MERINO WOOL

INSULATES WHEN WET

01INSULATES WHEN WET

Wool has the remarkable ability to absorb up to 30% of its weight in moisture without ever feeling wet or sticky. In the event that it does become wet, wool outperforms cotton and polyester materials by providing superior insulation.

ANTI-MICROBIAL

02ANTI-MICROBIAL

Merino Wool fibers possess a natural ability to repel bacteria in moisture or sweat, effectively wicking it away. This means you can wear our products without worrying about foot fungus or unpleasant odors.

FIRE RESISTANT

03FIRE RESISTANT

Merino Wool offers excellent insulation against high temperatures and has a natural resistance to catching fire. In the rare event of ignition, it self-extinguishes without melting and adhering to the skin, unlike synthetic fabrics.

THE FABRIC

MOISTURE WICKING

01MOISTURE WICKING

Merino Wool regulates moisture levels on your skin by absorbing any perspiration or sweat from your body, allowing it to evaporate from the fabric into the surrounding atmosphere.

UV PROTECTION

02UV PROTECTION

Leave your sunburn worries behind as you ascend to sunlit peaks. Our lightweight layers provide a UPF rating of 25, while the midweight and expedition options offer an even higher UPF rating of 50+

RENEWABLE

03RENEWABLE

Merino Wool boasts a minimal environmental footprint and seamlessly reintegrates into the natural world. Shear a merino sheep in the morning, and by afternoon, they're happily grazing their way towards renewing next season's wool clip

Reviews · verified by Judge.me

Customer Reviews

4.9
Based on 179 verified reviews
Write a review
  • 5 stars: 152 (85%)
  • 4 stars: 27 (15%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
G
Grace K. (United States)
Great quality and fit

I have only tried them on as it's still hot weather here in Arizona. I like the quality and they fit well. I especially like the scoop neck. Looking forward to staying warm when the cold weather comes.

G
Grace K. (United States)
Great quality and fit

I have only tried them on as it's still hot weather here in Arizona. I like the quality and they fit well. I especially like the scoop neck. Looking forward to staying warm when the cold weather comes.

R
R &.C.D.

Warm and comfortable. These are great.

S
Sherill

the fit is perfect and is a great base layer for all the fun cold outdoor activities to keep you warm.

S
Sherill

the fit is perfect and is a great base layer for all the fun cold outdoor activities to keep you warm.

R
R &.C.D.

Warm and comfortable. These are great.

R
R &.C.D.

Warm and comfortable. These are great.

S
Sherill

the fit is perfect and is a great base layer for all the fun cold outdoor activities to keep you warm.

K
Kabir

The base layers are really nice and soft.

A
Angela

This is a wonderful product for people in cold weather climates. It is warm, comfortable and offered at an excellent price. I plan to buy a few more!

K
Kabir

The base layers are really nice and soft.

A
Angela

This is a wonderful product for people in cold weather climates. It is warm, comfortable and offered at an excellent price. I plan to buy a few more!

A
Angela

This is a wonderful product for people in cold weather climates. It is warm, comfortable and offered at an excellent price. I plan to buy a few more!

K
Kabir

The base layers are really nice and soft.

A
Amberina

As soon as I put these on I was in love! I went outside in just these long underwear and wasn’t cold! It was 20 degrees Fahrenheit. I was only out there for a few minutes though. I highly recommend!

A
Amberina

As soon as I put these on I was in love! I went outside in just these long underwear and wasn’t cold! It was 20 degrees Fahrenheit. I was only out there for a few minutes though. I highly recommend!

A
Amberina

As soon as I put these on I was in love! I went outside in just these long underwear and wasn’t cold! It was 20 degrees Fahrenheit. I was only out there for a few minutes though. I highly recommend!

N
N. D.

I work outdoors, and wear these under my work clothes. Keeps me nice and warm without being bulky.

N
N. D.

I work outdoors, and wear these under my work clothes. Keeps me nice and warm without being bulky.

N
N. D.

I work outdoors, and wear these under my work clothes. Keeps me nice and warm without being bulky.

p
pamela s.

worth . ford camping

p
pamela s.

worth . ford camping

p
pamela s.

worth . ford camping

E
EthylEmmerich

You can't go wrong with these. True to size, warm, and the price is right.

E
EthylEmmerich

You can't go wrong with these. True to size, warm, and the price is right.

E
EthylEmmerich

You can't go wrong with these. True to size, warm, and the price is right.

C
Colleen

We purchased these to go to a football game and it was freezing outside, there was nine of us and I did not hear anyone complain about being cold, they did not disappoint.

C
Colleen

We purchased these to go to a football game and it was freezing outside, there was nine of us and I did not hear anyone complain about being cold, they did not disappoint.

C
Colleen

We purchased these to go to a football game and it was freezing outside, there was nine of us and I did not hear anyone complain about being cold, they did not disappoint.

G
Gulu B.

She uses it most of the time, happy she liked it. Perfect winter under layering

I
Iris A.

I love the soft and silky feel of these thermals. I am 5'8" with very long arms and broad shoulders - 165 lbs. I ordered x-large. I don't like tight clothing. I probably would have been happy with large. I am very pleased with the purchase. The socks that were thrown in as a bonus are also nice.

G
Gulu B.

She uses it most of the time, happy she liked it. Perfect winter under layering

I
Iris A.

I love the soft and silky feel of these thermals. I am 5'8" with very long arms and broad shoulders - 165 lbs. I ordered x-large. I don't like tight clothing. I probably would have been happy with large. I am very pleased with the purchase. The socks that were thrown in as a bonus are also nice.

G
Gulu B.

She uses it most of the time, happy she liked it. Perfect winter under layering

Questions people ask about merino

What is merino wool, and what makes it different from regular wool?

Merino wool comes from Merino sheep and is measured in microns — the thickness of a single fibre. Merino.tech uses 17.5 micron Australian merino, which is roughly a third the thickness of the coarse wool most people remember from old jumpers. Finer fibres bend against the skin instead of pressing into it, which is why merino feels soft rather than scratchy while still insulating, breathing and resisting odour naturally.

Is merino wool itchy?

No. Itch is caused by fibre diameter, not by wool itself. Fibres above roughly 22 microns are stiff enough to trigger the prickle response; ours measure 17.5 microns, well under that threshold. Every piece here is 100% Australian merino with no synthetic blend in the body fabric, so there is nothing rough sitting against your skin.

How do I wash merino wool without ruining it?

Turn the garment inside out, machine wash cold on a gentle cycle with like colours, and use a mild or wool-specific detergent. Lay it flat to dry. Never use fabric softener or bleach — softener coats the fibre and destroys the breathability you paid for. Merino resists odour, so you can wear it several times between washes, which is the easiest way to make it last.

What weight should I choose for a base layer set?

250 GSM is the answer for most people — it carries from the first frost through midwinter and works while moving or sitting still. Choose 165 if you run hot or plan high-output activity, and 320 if you are outdoors in deep cold without much movement. A set gives you the matched top and bottom in one weight, which is simpler than mixing.

Does merino wool shrink?

It can, but only under heat and agitation. Hot water and a tumble dryer cause the scales on the fibre to lock together permanently. Cold water, a gentle cycle and flat drying prevent it entirely. Follow that and the garment keeps its shape for years.