This product is size L (89-102cm). [3-in-1: Lumbar Support/Pelvic Care/Training] This lumbar corset is an all-in-one back support belt that combines three major functions: lumbar protection, pelvic stabilization, and training assistance. It comprehensively addresses common problems such as lower back pain, pelvic misalignment, and poor posture. It achieves three functions in one belt, catering to diverse needs including office workers, those needing postpartum pelvic care, and training enthusiasts. [New Pulley Design, Amazing Support] The corset features a pulley design that allows for instant tightening with a single touch. The collaboration of a movable pulley design, adjustment straps, and high-strength adjustment strings (cords) precisely controls the support force on the lower back. The pulley's labor-saving mechanism provides secure fixation with minimal effort. The back support belt is ergonomically designed to firmly wrap the lower back and abdomen, effectively reducing the burden on the lumbar spine. It is trusted and recommended by osteopaths and physical therapists. [Thin, Highly Breathable, Comfortable to Wear, Durable and Portable] The pelvic belt uses nylon mesh material and 3D support plates. While maintaining excellent support, it is thin and highly breathable, ensuring comfort even during prolonged wear. The soft sponge mesh pad sewn inside the back support corset prevents slippage and shifting during wear. It reduces excessive pressure and digging into the lower back, providing firm protection. Made with high-quality materials, it is highly durable and maintains its shape. It can be washed in a washing machine if placed in a laundry net. Weighing only 180g, it is lightweight and foldable. It can be stored in a bag, making it convenient to carry when going out. [Unisex, Suitable for All Occasions] For those suffering from lower back pain, pelvic misalignment, postpartum pelvic laxity, or a hunched back. By using the back support corset for 10 minutes a day for 20 days according to the instructions, you can experience positive changes in your body. It is especially recommended for those who stand for long periods, such as customer service staff, medical professionals, drivers, construction workers, and office workers, as well as those who are prone to sudden lower back pain and middle-aged and elderly people concerned about their back health. [Ideal for Gifts] This back support belt consolidates the three major functions of lumbar support, pelvic care, and core training into one belt. It comes in a luxurious gift box, making it a great gift for birthdays, anniversaries, and health-related occasions such as Father's Day, Mother's Day, and Respect for the Aged Day.