■ Grant E One's BiBi GRANT Ativo High Socks ■ Size: M ■ Color: Black ■ Made in Japan ■ Unisex ■ Gradually reduces pressure from the ankle By adopting a graduated compression design, it promotes blood circulation, relieves swelling and fatigue in the legs, and tightens and firmly supports the legs. In addition, it uses a special material called far-infrared ray fiber, making it comfortable even when sweating in the summer, and providing pleasant warmth in the winter. It also helps to regulate body temperature balance, which is beneficial for health care. Recommended for those who have problems with their legs, such as coldness and swelling.