these work!
I bought these to put in heels where my foot kept slipping out.  These did the job!  They were very sticky and stayed in place on the inside of the shoe.  They are comfortable and my foot did not slip out anymore with these in.  I love how it comes in a package of 3.  After seeing how great they were in my heels, I put them in one pair of slip on sneakers where I had the same problem and voila!  Problem solved!  These are definitely worth it.  Buy them!
Rating: 5 stars