L Size: 97-110CM 【Latest Evolution & Optimized Structure】The strings that pull from both sides allow you to tighten with even pressure on both sides. Using the principle of pulleys, you can strongly secure it by simply pulling lightly with one hand using only 1/10th of the force. In addition, kobepro's movable pulley automatically adjusts to the user's waist shape, ensuring that the support plate's force is applied evenly. When we conducted a trial fitting for those with lower back problems who already own belts from other companies, we achieved a purchase rate close to 100%. 【High-Quality Materials for the Waist Belt】We use a new generation of 3D breathable 100% polyester mesh, which combines stretchability and breathability to comfortably support the entire waist. It quickly evaporates sweat from the inside. You can use it all year round, regardless of the season, and you'll 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 problems. Poor posture due to lifestyle habits is a common cause, and muscle fatigue can also lead to poor posture. The waist belt aims to protect and stabilize the lower back, and wearing it increases 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 your posture lifts 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 wonderful posture like a samurai, and also leads to enhanced physical strength. Also, by correcting your posture, you can feel like you've grown taller. For "women," good posture makes you look clean and attractive, and correcting your posture can have a bust-up effect. In addition, your waist becomes slimmer, and there is also a diet effect through 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.