Therafirm is a leader in manufacturing high quality gradient compression products. They continue to innovate compression garments offering a full line of quality compression hosiery and socks that are comfortable, fashionable, affordable and deliver true gradient compression. Therafirm has a certified quality system, receiving ISO 13485 certification. THERAFIRM® branded products are manufactured in Hamlet, NC, USA by Knit-Rite, Inc., a leading designer, marketer, and manufacturer of innovative textiles for medical and consumer markets since 1923.