I've been buying these from Target for more than listed here.  Last summer, my son's "then" girlfriend stole ALL of mine so have to order more.
They're very comfy and don't wear down easily.  I use them for shopping, but the biggest benefit is when I'm cleaning house.  I use bleach products and because of the material, they don't bleach out...

I'm 5'8" and their length is perfect for me in XL.  Some yoga pants roll down or bunch up, these don't.  I wouldn't change a thing about these.  I'm a little on the chubb side and they still look awesome as well.