I’m not sure if it’s because there aren’t seems, but these are the softest technical leggings ever!!! I am so sad black is sold out because I just want to live in these!! Great fit, great material! Please make these in every neutral color you can think of! As for fit, I am 4-6 at LL, ordered these in both, and kept the 6! 4 was snug in the waist (I am thick-waisted, though).