Brand: TENTIAL Product Name: BAKUNE Color: NAVY Size: XL Worn 2-3 times and stored. There are no noticeable stains, but please understand this before purchasing. The following is a quote from the manufacturer's description: [Purpose or Effect] Improves symptoms such as fatigue and muscle stiffness through the far-infrared ray's blood circulation-promoting action. Fatigue reduction, blood circulation promotion, relief of stiff shoulders and lower back pain due to improved blood flow, reduction of muscle tension and stiffness, improved blood flow through blood circulation promotion, and improvement of muscle fatigue symptoms, and fatigue recovery. Uses SELFLAME(R), a material that radiates far-infrared rays emitted from the body. This provides a blood circulation-promoting effect. [Storage Method and Effective Period] - Store away from direct sunlight, water, high temperatures, and humid environments. - When not used for a while, dry it once before storing it in a dry place.