These tracksuit bottoms are very warm, comfortable and clearly very well made (stitching etc). However the one reason as to why I have rated them as 4 stars not 5 is because they are too long.
My size is normally somewhere between small and medium (I'm 5"7 male). The sizes available were small, large and X-large, so I naturally selected the small size. When they arrived I put them on and although the waist fit me perfectly, the length was too long, it folds over on itself many times at the ankles. I compared them to a pair of large Addidas tracksuit bottoms I got from my older cousin, and they are the same length!
So buy a size smaller and all will be well.