I like the product. It does keep me from slumping. Its a bit uncomfortable. But i imagine its because i slouch so much. I do feel a difference in the pain I usually have in my back. It is less when Im wearing the posture corrector. I would just add, mine JUST fits me. Clearly from the picture, I am a full figured woman. So, if you are any bigger than me, it will not work. I tried to put it on my muscular brother and we couldn't get the straps to reach around. Maybe they have a plus size one? But for me, even just fitting, it works really really well.
I've noticed my posture becoming worse and worse the more hours I spend in front of my computer screen. I don't have thoracic kyphosis, but I definitely enjoy using this to help remind myself to practice good posture! I'm 5'3 and this product is almost too big for me, but I can still wear it comfortably and even wear it without others really noticing, if I layer a sweater or cardigan over it. The straps are covered in velcro, so the device is really easy to adjust to whatever length you need. It fit my 6' husband really well. I can easily wear it around the house, but to start, I can only wear it for an hour at a time before my muscles get tired... I'm slowly raising the amount of time, and would recommend this to anyone wanting a cheap, versatile device to help their posture!