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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’ in elevation and endure 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.

Using best-in-the-world-quality Merino Wool - produced by our co founders, The Helle Family, fourth-generation sheep ranchers from Dillon, Montana - our apparel is designed for superior performance with stewardship, sustainability and 100% American-made craftsmanship at front of mind.

Follow Duckworth’s manufacturing process and you’ll see that it’s unlike the majority of wool-apparel makers, which source their wool from Down Under (most often Australia or New Zealand), send it to China to be turned into clothing, and then ship it to the U.S. to be sold....The climate of the Rockies in Montana—hot, dry summers paired with freezing winters—nurtures wool that’s not only soft and breathable, but is naturally more crimped than other wool on the market, aiding its durability.

- Outside Magazine



A lightweight (300 GSM) and proprietary blend of brushed Montana-grown Merino Wool, our bestselling Powderline produces an impossibly soft, ultra-fast-wicking, antimicrobial, and incredibly insulating layer. Think cold days around the house or office, a midlayer on a ski day, or an extra layer for when the temps drop on an overnight backpacking trip.

duckworth mens vapor wool tee, red

womens merino wool vapor hoody in pink

Named after a jagged, rock-covered mountain in Montana's Beaverhead Range, Comet is for those heavyweight (270 GSM) baselayer or brisk morning solo-layer needs. Ultra-durable Comet boasts a natural-technical mash-up, combining a pure, 100% Montana-grown Merino Wool outer layer and a recycled polyester inner layer. Why the combo? Polyester is hydrophobic, meaning it will wick sweat and moisture right off your skin and into the hydrophilic wool layer. It gets better: wool chemically begins to get even warmer when introduced to water and water vapor, adding a whole new degree of heat and warmth-generating reliability to Comet's high-tech performance.

The Duckworth Comet Hoody - a midweight mens Merino wool and polyester hoody in color Dark Olive

womens merino wool comet hoody in white

Everyone needs a pair of our Montana-grown Merino Wool socks. Why? Lightweight, naturally antimicrobial (odor-free), itch-free, cooling (yet heat-trapping, when you need it), moisture-wicking, quick-drying Merino Wool does the legwork, and the top-of-foot venting and ample cushioning do the rest. Extremely cold winters? Hot summers? No match for Merino, and the natural crimp of our unique wool lends these incredible socks a springy bounce you won't find elsewhere.

The Duckworth Comet Hoody - a midweight mens Merino wool and polyester hoody in color Dark Olive