Just glue them on at the start, and don’t rely on the adhesive backing.
Assume that you are buying grippy rubber pads to glue to your shoes.  They did stay stuck to my house shoes’ soles for a short time, but they began to fall off. I then glued them onto my shoes and my favorite house slippers are now safe on the stairs.  By the way, when I trimmed them to size,  I applied the extra pieces to other parts of the sole  to make them especially grippy.<br /><br />Well I need to apply the extras pads to a different pair of shoes, I’m just going to  glue them on and be happy with what I got.  They are grippy and do what I want, but the adhesive backing may not work for all types of soles and materials.
Rating: 3 stars