I agree with all the other reviewers of this product. I could give it five stars because it does what it's suppose to do - it helps keep your shoulders back, and I could give it three stars because it is a little expensive for what the product comprises. Also, the under-arm and shoulder straps can cause discomfort if they are stretched too tight, and the material can irritate the skin a little if the Velcro pads are not lined up to overlap correctly. But, hey, this product's strength is it's psychological benefit. You don't need to have the straps tight to force your shoulders back. The back panel material against your skin - which incidentally I find doesn't irritate - is a constant reminder as to why you're wearing it, and so you then tend to keep your shoulders back anyway. If you line up the Velcro straps to fully overlap (you then only need to slip the shoulder straps on and off) and you don't overstretch the material, you can wear the `Perfect Posture' all day. So, it works, and therefore the price is acceptable - just.