Duckworth is proud to be the world's only source-verified, Made-in-USA Merino wool clothing company. We carefully manage every step of the process, from raw fiber to finished garment. Knowing wool is our business. Starting at the Helle ranch in Dillon, Montana where every fleece is graded and selected for its end use, our Merino /wool then travels to the Carolinas, the traditional powerhouse of US textile production. The spinning, knitting and dyeing is part science and part art, requiring specialized know-how, trusted partners and the long-term vision of a fourth-generation ranching family. Deep understanding of the manufacturing process allows us to find opportunities for innovation at many stages of development, resulting in breakthrough wool products and practices, such as our “Chlorine Free” shrink-resist process, ultralight Vapor Wool fabric and our Woolcloud insulation.