Thank you for viewing my product from among many others. I will introduce a posture correction belt. How to wear it: Simply put your arms through the straps and secure it with the strong Velcro! Anyone can easily wear it. Point 1: Two plates are inserted in the back, maintaining an ideal angle based on ergonomics. (It's more of a supporting feel than a rigid fixation.) Point 2: Soft fabric is sewn onto the shoulder area, making it less likely to hurt even when worn for long periods. (It's important to wear it for a long time, but those with bad posture tend to feel uncomfortable. This helps alleviate the pain.) Point 3: Just fasten it at the waist with strong Velcro! (It's made of mesh fabric, so it feels comfortable to wear. It's very easy.) Color: Black Material: Spandex & Nylon Size: XL size *Please refer to the photos. *The size of this product is different from clothing sizes, so please be sure to check before purchasing. *If your measurements overlap between two sizes on the size chart, please choose the larger size. I understand how you feel if you have bad posture. I also do desk work most of the time, so I tend to slouch. Bad posture can also worsen your eyesight and lead to headaches, stiff shoulders, back pain, and neuralgia, which can become serious if left untreated. And then there's the appearance. Honestly, people with bad posture tend to look less energetic. Wear a posture correction belt and be bright and energetic! I hope you can live a healthy life. My personal experience: As I mentioned above, I was also quite troubled by my bad posture. This product has soft fabric sewn in, so it's fluffy and comfortable to wear for long periods. I think anyone who is seriously concerned or wants to prevent bad posture will surely like it. *This product is not a medical device. It is only a supporter, so please be aware of this. Please take a look at the profile of shop kirimomo if you like. #badposture #posturecorrectionbelt #backpain #headache #neuralgia #diet