Far infrared health protection socks produced with the pure natural fibre can prevent feet against the reproduction of bacterium. The inner body of socks joined in the far infrared fibre makes feet promote the new superseding the old, stimulate the circulation of blood, and obstruct the senescence. Because of its two structures, the ability of heat preservation is much stronger than the traditional quilted stockings. Its heel has the effect of special heat preservation, so can reach the efficacy of cutin softening.