I can lower the price to 3400 yen for today's purchase. Please feel free to message me anytime if you're interested, and I'll respond promptly. BIBI Grant Energetic High Socks Black, Set of 2, Size M These are the latest high-performance socks with a double action, featuring strong graduated compression and far-infrared effects. 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 firmly tightens and supports the legs. The openings and toes are designed to be soft, reducing constriction and discomfort. They have the far-infrared properties of KODENSHI, which provides warmth.