I have always had problems with my straps falling down since I first started wearing bras. I'm constantly pulling them back up or back into place--tightening the straps only made them dig in and pull the band up higher than it should have.
I tried the other cushioned silicone straps that Busom Besties sells but they were too bulky for what I wanted them for. Then I saw these and decided to give them a try. I LOVE THEM! I love the fact that they velcro onto the bra itself and has silicone against the skin. There was no shifting or slipping either away from the bra or away from myself. I also love the fact that they will hide under even thin straps.
They stayed put ALL day and I am constantly moving and being pushed and pulled by my 5 kids :) so if you need something to keep your straps in place these are your new best friend.