I've used them in my cycling shoes for about 2 years now. They worked great up until this winter. I started to have knee pain again, and through hashing it out at the chiropractor's (who happens to be a triathlete), we determined it was my knee's normal tendency to rotate out on climbs. He checked out my shoes, saw the shoes were beginning to "bend" a bit outward. He had me take out the insoles because Alines do have a little bend towards the outside of the foot. Have ridden three times without the insoles and the knee is doing much better, plus my average speed has increased. I do intend to hang on to the Alines for when I buy new shoes. I did like them. Think my issue was more the shoes than the insoles... However I'm just tossing this out there for input's sake.