These pants are so comfortable and just the right thickness. Not so sheer I'm scared to wear them out in public but not heavy enough to have me sweating & miserable here in So Cal if I get any exercise at all. They are long enough, which is rare for me to find--I have a drawer with a bunch of too short yoga & lounge pants that cost me a lot more than these did. The only thing I can say is that they run a little large..but honestly, I'm not going to complain too much over wearing a medium vs a large. Going to buy more in some of the other colors today!