I work at a chiropractor's office wearing scrubs and my shape-up sneakers five days of the week . They have been my best friends for almost a year now. They beat any other sneakers when talking about comfort and releasing back and leg pain from standing, walking or being on your feet for long hours. Recently my family came over and I walked from morning till night with them and my feet did not bother me one single time. I tried doing the same with my new Nike Livestrong and man... I suffered!!! There is no comparison. Whoever created these knew exactly what they were doing. I love my Nike but regretted buying it after the Shape-up new models came out! I'm definitely buying another one. Since I work for a chiropractor I feel almost obligated to recommend this to my patients.