Was having chronic metatarsalgia bad enough that walking more than short distances was painful. After little or no benefit from various insoles recommended by podiatrists, I came across these and gave them a try. Was immediately able to walk and hike comfortably for as many miles as desired - basically resumed my prior level of activity. The adhesive is amazing - the first few times I wear them it takes a bit of effort to peel them off my feet, then they are easy to peel off. I rotate two pair on alternate days (gives them a chance to "breathe" between wearings). After a few weeks they don't feel like they have much "stick," but they can easily be made to stick by warming them: first briskly rubbing my sole, then applying the pad, then giving the pad a good brisk rub, then putting a sock on to hold it in place until well warmed up. Then the pad sticks fine for the rest of the day. This way two pair last 6 or 7 weeks before I discard them because of odor. Super economical! Couldn't be happier.