This is my first running pants of this kind. This is mainly because, I do not really easy find with 1,93m and 108 kg clothes sitting well. The more surprised I was ei these running shorts. The tightening is not really dramatic. Just slip, tighten slightly and hey presto, feel good. The pants fit like a second skin quite pleasant to the body. Disturb the flat seams and tweak gehaltnen nowhere. A pleasant side effect, you get to have a nice ass in the pants ;-) The back pocket on the buttocks is designed so that you reinkriegt a key well, a big smartphone, however, does not fit. In addition, the key should not be too heavy, a weight pants else but pulls down noticeably. I am now running twice in the pants-five minutes, both times at around about 5 degrees plus and rather humid. Cold was me on the legs never, and impedes not have me. The light strips are for running on the track OK for run on the road they might like to have greater ssein to increase security.