Nano Fiber is an innovative product that demonstrates Sen Fiber’s leadership in the industry. Produced as a substitute for goose down, nano fiber is made through a special weaving process using fine fibers. This characteristic makes nano fiber ideal for clothing products such as jackets and vests, because despite its finer structure, it retains more heat. Sen Fiber offers high quality and excellent thermal insulation, providing outstanding comfort with nano fiber. This technology provides superior protection in cold weather conditions.