people hiking in the winter wearing midweight thermal layers and midweight balaclavas that are 100% merino wool people hiking in the winter wearing midweight thermal layers and midweight balaclavas that are 100% merino wool
100% Sustainable - 100% Comfort - 100% Merino Wool

Midweight Layers

group of people winter hiking wearing merino wool beanies man setting up a tent on a mountain in the winter wearing a minus33 kodiak fleece hoodie and a midweight 100% merino wool neck gaiter with a high vis beanie
ultra-soft & ultra-breathable

100% Merino Wool Beanies

woman winter hiking pulling up her neck gaiter wearing a 100% merino wool beanie and merino wool fingerless gloves woman winter hiking pulling up her neck gaiter wearing a 100% merino wool beanie and merino wool fingerless gloves
Moisture Wicking - Thermal Regulating

Scarves Gloves & Gaiters

people sitting on a car putting on their ski and snowboard boots wearing usa new hampshire made mountain heritage elite socks people sitting on a car putting on their ski and snowboard boots wearing usa new hampshire made mountain heritage elite socks
Moisture Wicking and Breathable

NH Made Ski &
Snowboard Socks

Our Fabric Weights

4 different fabric weights gives you plenty of options for year-round wool wearing. Merino sheep's coats have naturally adapted over time to help them survive in many extreme environments. Wool is great as an insulation tool, or to help block the sun and wick moisture away.

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, great as a solo layer or as a base layer in your layering system. Micro weight is perfect for high output activities such as hiking, skiing, and training.
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.
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.
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.

Why Choose Merino Wool?

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 have now made merino wool a performance favorite for outdoor apparel, socks and thermal underwear. 

Machine Wash and 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.

Bringing manufacturing back

NH MADE SOCKS

We've started manufacturing some of our socks right here in Ashland, New Hampshire. Our Mountain Heritage Collection is entirely made in the United States, right here in Ashland.