In this running tight is a knee-length, elastic sport pants without much "bells and whistles". It is relatively thin material from her. I wear size 38 pants in size M fits very well to me. The pants are very figure hugging, which makes sense even with a running shorts. Due to the bad weather I have been worn only on the elliptical machine, but very extensively. The pants are elastic and makes all movements easily with. What I do not like so much is that the leg end sits just behind the knee. Once you begin to sweat, irritate the skin area this pretty unpleasant. Slightly longer or shorter would be better. After washing the pants comes without warping of the machine. Through the thin material dries quite quickly. Running professionals may be familiar with the quality not so happy for me as a recreational athlete is the trousers in order.