I can lower the price to 3400 yen for today's purchase. If you're interested, feel free to message me anytime, and I'll respond promptly. *New, Unused* Grant E One's BIBI Grant Energetic High Socks Black, Set of 2, Size M With powerful graduated compression and far-infrared effects, these are the latest high-performance socks with a double action. They support your legs while making them feel refreshed and light! Using 520-denier high-support yarn, the graduated compression design from the ankle to the calf tightly firms and supports the legs. The openings and toes are designed to be soft, reducing constriction and discomfort. The far-infrared rays, a feature of Koushi-ryushi (Quantum Energy), provide warmth through their effect.