Amazing leggings! I run 25+miles per week ranging in length from 4-14 miles each. These are comparable to fast and free leggings but even better if you ask me. My fast and frees tend to gather material behind the knee and are too baggy in the ankle after wearing them for 30+ minutes whereas these do not. These are quite a bit tighter behind the knee and could use a slight modification in this area to loosen this area up, but as I said before these are better than Lulu's version by far. They stay put, don't chafe behind the knee, and dry quickly. For reference I'm 5'4" 120lbs size 2/26 jeans and wear an XS in these. Company has great customer as well. The first pair I bought had a seam that started to unravel around the pocket after wearing them for 50 miles or so total. (probably from stuffing my gloves and headband in the pocket when I get too warm.) Contacted them and they exchanged them no problem. I've got over 100 miles on the replacement pair and haven't had an issue what so ever.