L Size: 97-110CM 【Latest Evolution & Optimized Structure】The strings that pull from both sides allow for even pressure when tightening. Using the principle of pulleys, it can be strongly secured by simply pulling with one hand using only 1/10th of the force. Furthermore, kobepro's movable pulley automatically adjusts to the user's waist shape, ensuring that the support plate's force is applied evenly. When conducting trial fittings with individuals who have lower back problems and already own belts from other companies, we achieved a purchase rate close to 100%. 【High-Quality Materials for the Waist Belt】The new generation 3D breathable 100% polyester mesh is used, combining stretchability and breathability to comfortably support the entire waist. It quickly evaporates sweat on the inside of the belt. It can be used throughout the year, regardless of the season, and you will love the comfortable fit. High-quality polyester is also highly durable, so you can use it with confidence. 【Significant Improvement in Lower Back Problems】Daily nerve compression and unnatural postures can easily lead to lower back discomfort. Poor posture due to lifestyle habits is a common cause, and muscle fatigue can also lead to posture collapse. The waist belt aims to protect and stabilize the lower back, and wearing it increases intra-abdominal pressure, reducing the burden on the lower back. Long-term wear supports the lumbar spine, reducing discomfort in the lower back, abdomen, and back caused by work or fatigue. 【Improved First Impression】Correcting posture elevates your gaze, makes you feel more positive, and gives you a confident and bright appearance, greatly improving your first impression. For "men," it creates a posture like a samurai, leading to enhanced physical strength. Also, correcting posture can make you feel like you've grown taller. For "women," good posture makes you look clean and attractive, and it can have a bust-up effect. In addition, your waist becomes slimmer, and there is also a diet effect due to pressure drawing, so just having one can enrich all aspects of your life. "Correct posture changes your 'destiny'," and this is by no means an exaggeration.