These are five-finger socks, designed to open the spaces between your toes for better health!! Bisa is used on the "inside" of the socks and the "threads" of the toes. Far-infrared rays from Bisa promote blood circulation. The Bisa print gently stimulates the soles of the feet, massaging them evenly. You can feel a gentle warmth from the far-infrared rays emitted by Bisa. ● Recommended for those with foot problems, those who want easy foot care, those who stand or sit for long periods at work, those who do physical labor, those who work at a desk, those who find it difficult to recover from fatigue even after sleeping, those who are concerned about cold feet, those who can't sleep soundly, and those who don't wake up well in the morning. ● Our toes are an important part of the body that affects the whole body. The far-infrared acupressure half-socks are specially designed to allow your toes to open naturally. ● The far-infrared acupressure half-socks provide a foot massage effect just by wearing them daily. The secret is the approximately 2mm protrusions processed with a special "U-WDS" manufacturing method. These countless bumps gently stimulate the soles of the feet, which are also called the "second heart" where acupressure points for the whole body are gathered. Not only are they beneficial for your health, but the comfort is sure to become addictive. ● Far-infrared rays are used in various fields. The far-infrared rays emitted by the fine sand (Bisa) used in the far-infrared acupressure half-socks are found to belong to the wavelength range of 8-14 micrometers, exhibiting a high thermal effect, and their health benefits are expected. ● They don't feel bulky even when layered with other socks, so they are also great for cold feet対策 when sleeping. Size: Free size (unisex) Color: Beige Made in Japan