I'm sure these work fine, and I just haven't quite figured out how to use them. The product didn't come with any pictures or instructions, I know, you would think it was pretty simple. When I tried them, the strap on the front of my legs kept moving from one side of the knee to the other, the straps in the back could be seen through my pants.  I did try them on (only for a couple of minutes) so that they were more on my side, but this is using only 2 straps instead of four. They make the shirt really tight, which I think will be ok, just takes some getting used to. The metal clasps don't really hold the adjustments in place, and some of the clasps look like they are about to fall off. I really like the concept, keeping shirt tucked in and socks up, but I'm not quite sure I'm ready to commit to this product.