ZAZA Grant E One's Men's Pump Black Size M (Equivalent to Women's L) The Zaza series from Grant E One's. Men's pump. This men's corrective underwear, 【ZaZa GRANT (Zaza Grant Series)】, is born from a collaboration of Aqua Job, a sweat-absorbent and quick-drying material, with Photonic fiber that converts body temperature into far infrared rays, and AP Fiber [Patent No. 3306790] that generates negative ions. Developed by Dr. Toshinao Hoshina, a specialist in body alignment through muscle adjustment and health management, this series features a soft and supple feel, while its unique power stretch and sewing firmly support the often-injured lower back. Just by wearing it, it corrects posture, creates a beautiful style, and prevents malfunctions caused by body misalignment. Furthermore, the special fabric quickly absorbs and dries sweat, preventing sudden body chills after sweating, making it underwear with excellent functionality and comfort. Some fuzzing present. Home cleaned. This is a used item. I believe there are no major stains, but there may be small oversights. Individual differences in perception exist, but I do not sell items that cannot be used. Please read the profile before purchasing.