A1903 Koshitsui-Mawari and Pelvis-Mawari Support Belt by Bone-Sensei: Easy Comfort Double 【Color】 ・Black 【Size】 ・M: Upper Belt (Waist) 70-85cm, Lower Belt (Hips) 80-90cm 【Material】 ・Nylon, Polyester, Others 【Weight】 ・Approx. 230g 【Product Specifications】 ・Unisex 【Country of Origin】 ・Made in Japan *For men, please select based on waist size; for women, please select based on hip size. If your measurements overlap, we recommend choosing the larger size. Jointly developed by Mr. Mutsuya Sakakibara, a chiropractor known as Bone-Sensei, and Marumitsu Sangyo, a specialized supporter manufacturer. This product is recommended for those concerned about lower back pain, discomfort, and posture, leveraging Mr. Sakakibara's long-standing experience and achievements from interacting with over 40,000 customers, combined with Marumitsu Sangyo's technology and know-how. It features a unique design with a combined upper and lower W-belt. The upper belt is a "protective belt" that firmly supports the lumbar spine. It supports the abdominal and back muscles by firmly fixing the lumbar area with a fabric that doesn't stretch easily. The lower belt is an "offensive belt" that balances the pelvic area. It supports the buttocks by tightening, supporting, and lifting, making it easier to walk. It supports the pelvic area with a combination of non-stretch and stretch fabrics. This balanced upper and lower design supports both the pelvic and lumbar areas. The use of breathable, thin mesh material is a welcome feature. Designed to be worn over underwear, it is thin and discreet under clothing, with a focus on comfort. ⚠︎ Although unused, please understand that this item has been stored at home. ⚠︎ Please carefully check the appearance in the photos. ⚠︎ As this is a personal inspection, there may be oversights. Receipts, proof of purchase, and warranties are not included. ⚠︎ The product will be simply packaged. To reduce shipping costs, the outer packaging may be removed before shipping. Also, the product may be folded or compressed for delivery. ⚠︎ Please check the condition and accessories in the images. Regarding accessories, please be sure to look at the images before purchasing to confirm the current condition. ⚠︎ The color may differ slightly from the actual product due to the influence of the shooting environment. Please understand this beforehand. Thank you for viewing.