I tried it on once, but the size didn't fit, so I'm selling it. For those 145-165cm tall. [Supervised by a Physical Therapist] DEZIYUA Posture Supporter, Kyphosis Correction Belt (Size S) This is a genuine posture supporter that cares for the modern person's problems of "kyphosis and rounded shoulders." This is a size S item. [Product Features] • Authentic, supervised by a physical therapist Supervised by a Japanese physical therapist (Mr. Hiroki Shimazaki) as an advisor. Designed based on human engineering, it supports posture without strain or pain. • Strong support with "metal bones" Instead of easily broken plastic, it incorporates "metal bones" with excellent durability and support. You can straighten your back firmly with a feeling of being pulled. • Comfortable to wear Made with high-elastic cotton and air mesh material on the back, it is breathable and less prone to stuffiness. Detachable cushion pads are attached under the armpits, making it comfortable and less painful. • Discreet, thin design It weighs about 200g and is lightweight and thin. It is inconspicuous even when worn under clothing, allowing you to secretly care for your posture when going out or at work. [Recommended for those who] • Have poor posture due to desk work or using smartphones • Want to improve kyphosis and rounded shoulders • Want to achieve beautiful posture and gain confidence [Usage guidelines] Wearing it for about 2 hours a day supports the habit of correct posture. (※Please start with a short time at first)