Tights are a dime a dozen, but that doesn’t mean you should just grab any pair for running, or all the other workouts you do to support your habit. You need a few pieces that can flow with you on easy runs, and others that fit like a glove without limiting your movement during harder sessions. That’s where the lululemon Align High Rise Pant and LSKD Fusion Ultra High-Rise Legging fit in.

Both of these tights are good for runners, but for very different reasons. I tested each style for a month to see exactly how these popular pieces could fit into a runner’s everyday life. I switched between the two pairs while training for the Copenhagen Half Marathon. I used them on easy, hard, and long runs, storing my phone, gels, keys, and sometimes even a 16-ounce water bottle in their pockets. I also wore them on non-training days to see how they feel when I’m not exercising.

Three other Runner’s World testers gave them a try also. We rated them based on fit, comfort, breathability, sizing, and overall wear.…