Not as good as it used to be
"I frequently get blisters on my heels from hiking boots. I've used these for years and have been impressed by how well they held up and prevented blisters. But these feel different than they used to. They seem less flexible and less sticky. Despite making sure my feet were as dry as possible and putting them on before I started hiking, they rolled up and off within a few hours of starting to hike. it was very humid conditions on rocky trails (Maine) and nothing sticks to my feet well, so they may work for others. But, I'm sad because the old version worked so well for me. Less of an issue, but it seems like the tape backing is changed too, and it's harder to peel off."