Instructions
With water bottles at your sides, stand with your feet slightly wider than shoulder-width apart and feet pointing slightly outward. Look straight ahead.
Squat down until your upper legs are parallel with the floor by bending your knees, keep your back straight.
With an explosive but controlled movement, push up through your heels and press the water bottles above your head as you return to standing position.
Still standing, slowly lower the water bottles down to your chest and then down to your sides by extending your arms.
Repeat.