Bought these for my Sperry sneakers. They work well for slip ons, but I did notice that some of the ends (that go into the eyelet hole) have bumps to help keep them from slipping out - that may or may not bother the top of the foot. And I did have to change them out for the shorter ones... but otherwise, great for slip-on shoes!
FYI: I did try them in my running shoes, and they didn't give me the adjustable support (tightening or loosening)  I need when running.