The best running tights are the ones that don’t fall down during runs, and are usually high waisted. Don’t ever believe anything else that someone tells you about buying a specific brand. Any brand can make the best running leggings by nailing these two things down.
As a runner, I have bought a lot of running tights and leggings but, not all of them stayed up while I hit the trail.
Running while trying to pull up your pants is not graceful at all. Not only do you have to deal with tugging at your leggings, but it also messes up your pace, motivation, and running technique.