Woman with her dog hiking wearing a lightweight women's charcoal gray crew long sleeve top. Man wearing a charcoal gray crew tshirt that is lightweight merino wool with a blue ridge cuff beanie
Lightweight Merino

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SAVE UP TO 20% ON NH-USA MADE SOCKS

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Shop our Merino Wool Collections

Minus33 offers sustainable men's and women's merino clothing that includes base layers, mid-layers, outer layers, underwear, headwear, and socks for any activity. Shop microweight, lightweight, midweight, and expedition heavy weight.

man setting up a tent in the winter wearing merino wool thermal layers
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woman hiking wearing midweight merino wool
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nh usa made merino wool socks
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Men's Best Sellers

Our merino wool clothing is a favorite for men around the globe.  From breathable underwear and socks, to tees and polo shirts, check out some of our best selling men's merino wool clothing.

Lightweight

Ticonderoga Men's Crew

100% Merino Wool

from $74.99
Minus33 Merino Wool Clothing Saratoga Men's Lightweight Wool Bottom
Lightweight - Saratoga Men's Bottom 100% Merino Wool - Minus33 Merino Wool Clothing

Lightweight

Saratoga Men's Bottom

100% Merino Wool

from $74.99
Mens Wool Tee Shirt - 100% Merino Crew. Use it as a base layer on a chilly morning or wear it all by itself during your next summer summit. Soft, no stank, and versatile, you won’t believe how often you’ll be reaching for it. Perfect as you transition through different temperatures.
Minus33 Merino Wool Clothing Algonquin Men's Lightweight Wool S/S Crew

Lightweight

Algonquin Men's T-Shirt Crew

100% Merino Wool

from $69.99
Woolverino Men's Wool Boxer Briefs - Micro Weight. With our new Micro Weight Woolverino fabric, your favorite boxers just got an upgrade. Improved fit, enhanced durability, and the same Merino Wool feel you've grown to love. The wolverine is out of the bag. Run for a pair while you can.
Woolverino Men's Wool Boxer Briefs - Micro Weight

Microweight

Men's Wool Boxer Briefs

Woolverino

$44.99
USA Made
Minus33 Merino Wool Mountain Heritage Ten Inch Boot Sock Patriot
Minus33 Merino Wool Mountain Heritage Ten Inch Boot Sock Olive Drab

Lightweight

Boot Wool Socks

Mountain Heritage

$20.49

Women's Best Sellers

Our women's merino wool clothing is designed to keep you warm and comfortable wherever your next adventure takes you. Hiking, skiing, snowboarding, camping, and more.

XS to 3X
Minus33 Merino Wool Clothing Moriah Women's Lightweight Wool Crew. Flattering and comfortable, this Lightweight Crew will be the envy of your group! Keep this top handy when there is a chill in the air as the thermal properties of Merino will warm you right up. This will be the first thing you put on and the last thing you take off!
Minus33 Merino Wool Clothing Moriah Women's Lightweight Wool Crew

Lightweight

Moriah Women's Crew

100% Merino Wool

$74.99
XS to 3X
Minus33 Merino Wool Clothing Magalloway Women's Lightweight Wool Bottom
Minus33 Merino Wool Clothing Magalloway Women's Lightweight Wool Bottom

Lightweight

Magalloway Women's Bottom

100% Merino Wool

$74.99
Minus33 Merino Wool Clothing Appalachia Women's Lightweight Wool S/S Crew. Women's Short Sleeve Crew is fashioned to become a girl's best friend. Stylish, comfortable, and performance-oriented, what more could you ask for? Be sure to wear this on your next hike, walk, or biking adventure and see what the power of Merino can do for you!
Minus33 Merino Wool Clothing Appalachia Women's Lightweight Wool S/S Crew

Lightweight

Appalachia T-Shirt Crew

100% Merino Wool

$69.99
Minus33 Merino Wool Clothing Woolverino Women's Micro Weight Boyshort. Our Woolverino Women's Boyshort is here for you when you need coverage. Our new Micro weight core-spun blend brings you underwear that is breathable, moisture-wicking, and durable for a variety of activities and everyday wear. This boyshort style is designed to have generous coverage in the rear and has a 1in inseam for additional leg coverage.

Microweight

Women's Wool Boyshorts

Woolverino

$34.99
USA Made
Minus33 Merino Wool Mountain Heritage Lightweight Mini Crew Socks Oatmeal
Minus33 Merino Wool Mountain Heritage Lightweight Mini Crew Socks Oatmeal

Lightweight

Mini Crew Wool Socks

Mountain Heritage

$19.49

More Wool. Less Synthetics. Healthier Planet. Healthier You.

Learn more about our commitment to sustainability and keeping our clothing PFAS & Chemical free

Premium Quality & Performance

Socks made in the usa

We manufacture our Mountain Heritage Sock Collection right here in Ashland, New Hampshire - USA. Choose from over 30 styles of premium Merino wool ski socks, snowboard socks, hiking socks and more.

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Merino Wool Experts since 1916

Nobody knows wool like we know wool. Since 1916 we have been manufacturing fabrics that perform to our standards for softness, durability,color consistency and more.

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Merino Wool Fabric Weights

From the extreme cold to warmer conditions - 4 different Merino wool fabric weights give you plenty of options for year-round wool wear. Click here to Learn which weight is best for you.

micro lightweight merino wool woolverino micro lightweight merino wool woolverino
145 g/m2

Micro

Featherlike, ultralight merino wool. Our Certified PFAS & Chemical Free Microweight is perfect for high output activities such as hiking, skiing, and training.
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lightweight merino wool spring clothing hiking gear running biking lightweight merino wool spring clothing hiking gear running biking
170 g/m2

Lightweight

Offers great UV protection while still being light enough to wear as a solo layer in the sun. Lightweight is also good as a thin base layer when you want to minimize bulk.
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midweight 100% merino wool winter clothing skiing snowshoeing hunting base layers midweight 100% merino wool winter clothing skiing snowshoeing hunting base layers
235 g/m2

Midweight

Our midweight items are our best sellers because they're the most versatile. These three-season layers are perfect solo in late fall/early spring, and one of the softest, most comfortable base layers you can find for winter activities.
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extreme cold weather merino wool base layers mid layers outer layers heavyweight extreme cold weather merino wool base layers mid layers outer layers heavyweight
380-400 g/m2

Expedition

Our Expedition weight is one of the thickest and warmest layers on the market. Add it as a base or mid-layer to your system for a real game changer. You'll be amazed by how much longer you can stay out in the cold.
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Merino Wool Benefits

Say goodbye to the stereotypes you may have heard about old school wool, and say hello to super soft, comfortable, easy to care for Merino wool. Qualities like high insulation and low air permeability make Merino wool a performance favorite for outdoor apparel, socks and thermal base layers.

Comfort Benefits

  • Natural Insulation
  • Super soft & non-itchy
  • Moisture Wicking & Breathable
  • Naturally Flexible & Resilient
  • Odor Resistant

Safety Benefits

  • Certified PFAS / Chemical Free
  • Fire Resistant/Flame Retardant
  • UV Protection
  • Insulates When Wet
  • Non-allergenic

Environmental Benefits

  • Renewable & Sustainable
  • Recyclable & Biodegradable
  • Anti-Microbial & Anti-Odor
  • Durable & Sustainable

Machine Wash & Dry

Minus33 Merino Wool is also machine washable and dry-able, thanks to Total Easy Care technology. Developments initiated by Australian Wool Innovation and the Woolmark Company have delivered Merino Wool garments that are no longer hand-wash only. Learn all about caring for merino wool.

Learn About Wool Benefits