While training for my first half-marathon and subsequent marathon I was plagued with foot pain in my arch (plantar fasciitis) after every run longer than 4 miles. I tried new shoes, stretching, icing and ibuprofen. It wasn’t until I tried Superfeet that I felt relief during and after my runs. I went on to an excellent finish in my race and I now use these for every activity: running, hiking, skiing. I love them. I’m trying to get my wife to try a pair to prevent the pains I endured as she increases her mileage.