These tights are pricey but worth every penny. I ran an ultra-marathon wearing these tights last week and compression in all the right places (knees, calves, ankles and lower back) kept me feeling great. In addition, temperature control seemed just right, so I never got too hot even in the low 50's. My only regret is that I fell during a particularly rocky portion of the race, and I ripped a hole in the knee (also gashed my knee). The tights provided good protection from the fall and the results could have been worse; I just wish I hadn't damaged these great tights.