If you are not familiar with resistance bands… Imagine a giant, thick rubber band with handles on each end of this thick, strong stretchy cord. And you anchor the middle of the cord on to a solid object such as a post, or a door. Then the idea is to pull and push, and squat, and use the resistance to stress your muscles.
They travel well. You can easily pack them in your suitcase for travel and do exercises in the car or in your hotel room.
They increase coordination. Because there's tension throughout the exercises, you have to stabilize your body. This helps with coordination, balance and it also helps you involve more muscle groups.
They add variety. With weights, you're often limited as to how many exercises you can do. But, the resistance band allows you to change your positioning in multiple ways. This changes how your body works and how an exercise feels.
They're great for all fitness levels. Depending on how you use them, bands can be great for beginners as well as more advanced exercisers. You can use them for basic moves or to add intensity to traditional moves.
They are good for warm up and muscle activation. The glutes are a muscle group that are usually dormant and deactivated. A good way to activate it is to do a "clamshell", where you lay on your side, wrap a resistance band/tubing around your knees, and open/close your legs like a clamshell. If you're doing it right, you should feel it on your butt. Another good one is the side-step, where you hold a resistance band/tubing with your hands, step on it with both legs, then step to the side several times 1 direction, and several times back. The band/tubing provides some form of resistance.