Heres what you’ll need for this one:
4 rounds of the following:
Overhead squats- 25 reps
Hip lifts-25 reps
Leg raises-25 reps
Side planks straight arm or elbow, w/ dip-25 per side.
For the overhead squats, hold the stretch and hold the towel overhead; this completely changes the mechanics of the exercise.
The side planks w/ dip will not only work your obliques but lats as well.
Thoughts from the brain....