100% Montana-grown and 100% American-made, Duckworth is proud to be the world's only source-verified, single-origin Merino Wool clothing company.

Our dedicated team carefully manages every step of the process, from raw fiber to finished garment: Knowing Merino Wool is our business.

Starting at our ranch in Dillon, Montana, our open-range Montana Merino sheep live between 5,000’ and 9,500’ elevation and temps ranging from -40 to over 90 degrees Fahrenheit, grazing on natural grasses and Montana wildflowers found on remote mountainsides. The unpredictable and rugged conditions of the Northern Rockies result in a rare Merino Wool: an incredibly soft, yet durable, fiber with exceptional loft and breathability thanks to an unparalleled degree of "crimp" within the fleece.

It's also there, on our ranch, that every single shorn Merino Wool fleece is graded for quality (and thus selected for its end use). Then, we spin those choice fibers into a proprietary yarn: Spinning, knitting, and dyeing is part science and part art, requiring specialized know-how, trusted American partners, and the long-term vision of a fourth-generation ranching family from Montana.

Deep understanding of the manufacturing process allows us to find opportunities for innovation at every stage of development, resulting in breakthrough proprietary wool products and practices, such as our ultralight Vapor Wool and Maverick fabrics, ultra-soft-yet-durable Powder fabric, and our WoolCloud insulation.

Although the U.S. textile industry has been on the decline for decades, with competitors seeking cheaper opportunities oversees, our Sheep to Shelf™ supply chain brings jobs back to small American communities, keeps technical knowledge close to home, and assures maximum life-cycle sustainability.

Duckworth guarantees total supply-chain responsibility, quality, and transparency from beginning to end. That's what Sheep to Shelf™ is all about. That's what 100% Montana-grown and 100% American-made promises every time.

Read more about the benefits of Merino Wool HERE.

  • Vapor
  • Maverick
  • Polaris
  • Maverick Peak
  • Comet
  • Powder
  • Woolcloud
  • Sawtooth
  • Snowcrewst

A proprietary blend of fine micron Duckworth Montana-grown Merino Wool, cellulose (modal, a recycled bamboo fiber), and recycled Polyester, Vapor Wool produces an ultra-fast-wicking and naturally cooling single jersey fabric. The cooling sensation is due to conductive "revaporation," which kicks in during any form of physical exertion.

  • 38% Montana-Grown Merino Wool, 50% recycled Polyester, 12% Modal (recycled bamboo fiber)
  • 100% American-made
  • 150 gsm