Sustainable Brands Highlight – Darn Tough Sustainable Brands Highlight Here’s a brand that really inspires! Check out these good works from the folks at Darn Tough. Trade-in Program Darn Tough offers an unconditional, lifetime guarantee of their socks. Charitable Giving Through their Knit to Give program, Darn Tough donates to the Vermont Food Bank. Environmentally Sustainable Innovation Darn Tough socks are made with ethical and sustainable materials, such as Repreve fibers and responsible wool. Visit our locations in Ukiah or Eureka to see the selection of sustainable gear from Darn Tough. View More Sustainable Brands April 9, 2024 / Comments Off on Sustainable Brands Highlight – Darn Tough