Simple belt for people with bad posture or a hunched back. The construction is simple but durable. It's easy to use because it's simple, and it's also convenient to carry. I think it would be great if you could use it like a backpack. The shoulder area is also adjustable, so you can adjust it to your preferred size♪ I actually tried it, and I could feel that it was well supported, and my shoulders didn't hurt. Free size The shoulder strap length was 52 cm. I think it's a range that can be wrapped around enough♪ Supporter Posture correction Posture improvement Hunchback correction Hunchback improvement Shoulder pain supporter Neck stiffness supporter 11