Product Description [Contents] ・Main body, height adjustment sheet, cushioning material This supporter has a moderate thinness that doesn't get in the way when worn, and a high-resilience, three-dimensional structure that firmly supports the lower back. It flexibly fits various postures, such as lying down and sitting. By wearing this product, the body pressure concentrated on the buttocks and shoulder blades when lying on your back is distributed, reducing the burden on the body and making it easy to turn over. It corrects "sunken lower back" on soft bedding and supports "swayback" caused by hard bedding, making your lower back feel better. The material uses a blanket fabric with a built-in polyurethane film that does not allow cold air to pass through. It will warmly wrap your lower back even on cold days. The included instruction manual contains the "1-minute method before bed." You can aim for a beautiful posture with simple exercises that can be done while lying down. [Materials] ・Main body (outer fabric): 100% polyester Middle layer film = polyurethane ・Cushioning material (inner material): 100% polyester [Size] ・Approximately 19 x 125 x thickness 3-5 cm ＜Compatible waist size (with clothing)＞ ・Approximately 80-110 cm [Weight] ・Approximately 310g [Included documents] ・Instruction manual [Maintenance (pictogram label)] ・Other: ＜Main body (outer fabric)＞ ・Washing machine: Yes ・Bleach: Chlorine and oxygen bleach not allowed ・Tumble drying: Not allowed ・Air drying: Hang to dry in the shade ・Ironing: Not allowed ・Dry cleaning: Not allowed ・Other: ※Use a laundry net [Precautions for use] ※See the instruction manual for details ・If you are undergoing treatment for your lower back or have any medical conditions, consult with a doctor before use. [Country of origin] ・Made in Japan Please use this product at your own risk. Also, regarding the product condition, please understand the condition described in the 【】 of the product before purchasing. ※Although we inspect and ship our products, there may be some stains, protruding rubber, or fraying, so we are selling them at a discounted price. Please understand this before purchasing.