1. Start flat on your back with both your knees bent
2. Drive through your heels to raise your hips until your body is in a straight line
3. Once you reach the top, hold that position for 1-2 seconds and squeeze your glutes
4. Lower yourself to the starting position
If you want to progress the exercise, I like to start with the legs narrow, do 2 repetitions, then go a little wider and do 2 more repetitions. Continue to do this until you go as wide as you can and then from there, you can just rep out. You will feel the lateral chain engage more as you go wider but make sure that your knees and ankles are equal distances apart.
Link to the resistance bands I recommend: https://amzn.to/3bwOfwI