Duckworth is proud to be the only source-verified, 100% Made-in-USA merino wool clothing company. They carefully manage every step of the process, from raw fiber to finished garment. Knowing wool is definitely their business. Starting at the Helle ranch in Dillon, Montana where every fleece is graded and selected for its end use, Duckworth's 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 them to find opportunities for innovation at many stages of development, resulting in breakthrough wool products and practices, such as their “Chlorine Free” shrink-resist process, ultralight Vapor Wool fabric. Duckworth guarantees total supply-chain responsibility, quality and transparency from beginning to end. They fit and perform better than anything we have ever worn and look forward to getting their hard working product into your hands.