Minus33 Merino Wool Thermerino® Fill Technology

When you look outside and see the snow falling and the wind blowing, you’ll be glad to have the power of Thermerino on your side! A progressive continuous insulation engineered from the highest quality merino wool fibers, Thermerino was designed with state of the art technology to provide the utmost in performance and functionality.

Superior insulating properties allow for increased heat retention, providing your body with the warmth it needs to conserve energy and preserve resources. Unlike down, Thermerino’s moisture management technology allows the garment fill to remain expanded when wet, allowing for increased insulation and comfort when the elements try to bring you down.

Don’t get caught unprepared.
Discover the power of THERMERINO®.

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What is Thermerino®?


An insulating layer is vital to keeping you warm in those cold conditions. Natural fibers will help trap heat close to your body. In situations where you might get wet – a wool insulating layer will still work to keep you warm.

Wool as an insulator has been tried and tested for centuries. There’s a reason it worked then, and it still works today.


Merino wool offers excellent moisture management, odor resistance/anti-microbial properties, and at the end of its life, is renewable and recyclable.

Wool will absorb up to 30% of its weight in moisture. If you do get wet, wool will insulate you better than cotton or polyester materials.

Whether it’s rain, snow, or sweat – you can count on being protected when the going gets tough.

how it works

How It Works


100% Ripstop Polyester

Durable water repellent finish on a ripstop, wind resistant outer shell keeps the harsh environment out.


85% Wool, 15% Polyester

Wool fill insulation provides thermal regulation and keeps you warm when wet.

Baffle construction keeps fill evenly distributed about the body for controlled temperature regulation.

Polyester knit interfacing allows air and moisture through, while keeping the wool fill in place.


70% Tencel, 30% Merino Wool

Combination Tencel/Merino liner helps your body breathe, and is completely natural and biodegradable.

Minus 33 Merino wool clothing, thermerino - diagram-labled-min

Put It All Together

This jacket can become your go-to combination shell/insulating layer for day to day use.

Liner, wool fill, and breathable shell work together to wick moisture away from the body and keep it away, allowing your body to breathe comfortably.

  • Throw a tougher shell layer over the top for those extreme adventures
  • Add merino base layers and you are good to go

  • Great for snowsports: skiing, snowboarding, skating, snowshoeing
  • Useful for: shoveling or snowblowing the yard, walking the dog on cold winter days

the jacket

Thermerino® Hooded Jacket


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