Loungewear and athleisure clothing are now staples in most people's wardrobes, but leggings for working out are not your average leggings. Whether you're doing low-impact yoga, high-intensity exercise like running or cycling, or weight-bearing exercises, your workout leggings should be comfortable, moisture-wicking, breathable, and long-lasting. They should also fit well, stay in place, and look good when worn. To achieve all of these goals, the Good Housekeeping Institute Textiles Lab set out to find the best performance leggings that can withstand any workout. We tested dozens of workout leggings on construction, stretch recovery, moisture management, opacity, pilling resistance, colorfastness, and washability. Following that, over 100 consumer testers wore the leggings during workouts and rated them for fit, breathability, comfort, appearance, and other factors. The picks ahead are test winners, as well as newer styles from brands we love, or ones with unique features and r...