Lie on the floor and loop a band around the middle of one foot and while keeping your other leg as straight as you can and touching the floor.
Use the band to pull your leg towards you until you feel a good stretch. The straighter you can keep the leg you’re pulling, the more of a stretch you will feel. Do your best to keep your other leg straight and in contact with the floor.
If you do not have a band at home, you can do this stretch with a towel or a belt.
Once you’ve held the stretch for 30 seconds, switch legs.