Digs into armpits, unsure what else it's supposed to do.....
This doesn't really do much for my posture other than dig into my armpits - that's when it reminds me to pull my shoulders back! If I hold my shoulders back to the point where it's not digging into my armpits, my posture is where it should be! So, I guess it sort of works.  It sure isn't what I expected or what it's supposed to do!
Rating: 3 stars