"BS West Warmer BN2201 Navy" Brand new, unopened. Material: 58% Polyester, 38% Cotton, 4% Polyurethane Free Size (M size) Waist 60-75cm, Length: 30cm * Unisex belly band "BS Fine," a new fiber developed by Kamo Seni in Tsuyama City, Okayama Prefecture, which incorporates black silica, is said to be like "wearing a rock bath," and provides a comfortable warmth through far infrared rays. Unlike conventional belly bands, the BS Fine West Warmer has excellent fabric elasticity and fits the body gently without feeling restrictive. Just by wearing it on your stomach, it warms your body from the inside. It's thin, so it doesn't show through outerwear. The "single-bag border fabric" used is a belly band-exclusive fabric with a two-layer structure of BS Fine, cotton, and polyurethane. The addition of polyurethane enhances elasticity, reducing the feeling of tightness, making it comfortable to wear even at night. 【BS Fine】is a new fiber that incorporates natural black silica (Shinten Stone) into polyester using cutting-edge technology. Because 0.3-micron natural ore is enclosed in the center (core-sheath structure) of 3-micron polyester fibers, the effect does not change at all even after washing. Furthermore, by making it finer, the surface area of black silica increases, and we have succeeded in efficiently drawing out its power. The "wearing rock bath" BSFINE series warms the body to the core with far infrared rays from black silica, without causing sweatiness, and provides a comfortable warmth. I will fold the top slightly for shipping. #BSFine #Women's #Underwear/Underwear"