Resistance bands are versatile strength training tools. They’re lightweight, portable, and cost less than a month’s membership at most gyms, yet are able to significantly enhance strength training workouts. We considered 23 sets of bands and tested 10, and found that the Bodylastics Stackable Tube Resistance Bands are the best—and safest to use—for most people. If you’re looking for superbands for pull-up assistance or mini bands for physical therapy exercises, we have picks for those, too.