These under layer pants are well designed - perfect for my needs. I am able to wear my knee support and other protective gear under the pants due to the baggy/loose fit of the pants. They do not restrict my movement either. When I say they fit loose, it is not an overbearing loose fit, they still look slim on, they just do not hug your legs - but like I said, this allows plenty of room to either layer up under or wear all the protective gear you need. The tight portion at the bottom is nice because it stops right under the knee does not bunch up inside the boot. It is stretchy enough to fit over my large calves, but restricted enough that it will not budge out of place or move up and down my leg - no fixing!
The material is very soft and is non-static. I purchased the black with owls - very cute! I am about 135lbs and 5foot 4inches tall, I bought the size Large and they fit really good, of course I also planned ahead for the extra supports I need to wear so I went with the large to be sure I had enough extra room, but even without the extra gear under, it fits nice still!