Teko Socks was founded on the belief that performance outdoor socks can be made without leaving a heavy impact on the environment. Using only quality fibers, sound manufacturing processes, and recycled materials for packaging, Teko ensures that their socks are safe for the environment. Every fiber Teko selects must provide the highest level of performance and have minimal impact on the Earth. Teko socks are knitted in North Carolina, USA. Domestic manufacturing not only keeps jobs close to home, it ensures that the energy used for manufacturing is generated cleanly. Teko is 100% wind-powered.