Brand new, unopened. Gray. *No price reduction.* Free size (M size) Waist 60-75cm, Length: 30cm *Unisex belly band Material: 58% Polyester, 38% Cotton, 4% Polyurethane BS Fine, a new fiber developed by Kamo Fiber in Tsuyama City, Okayama Prefecture, incorporates black silica, and is known as "wearing a bedrock bath," providing a comfortable warmth through far-infrared rays. The BS Fine waist warmer differs from conventional belly bands. Its excellent fabric elasticity allows it to gently fit the body without feeling restrictive. Simply wearing it around the abdomen warms the body from the inside. It's thin, so it doesn't show under 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 inclusion of polyurethane enhances elasticity, reducing tightness and making it comfortable to wear even at night. 【BS Fine】is a new fiber that incorporates the natural mineral black silica (Shinten Stone) into polyester using cutting-edge technology. Because 0.3-micron natural mineral 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, successfully drawing out its power efficiently. The "wearing a bedrock bath" BSFINE series warms the body to the core with far-infrared rays from black silica, without causing sweatiness, and provides a comfortable warmth.