Stand with your feet slightly wider than hip width apart with your toes pointed out. Keeping your core braced, bend at the knees and drop your hips down into a deep squat position. Gripping the end of each foot with your hands, using your arms to drive out against your hips and knees and opening them into a deeper stretch. Inhale as you do so. Remember to keep your chest lifted and your spine extended at the bottom of the squat. Your heels should remain in contact with the floor. Exhale and look directly between your legs as you drive your up towards the sky and extend your legs as much as possible. Maintain a firm grip of your feet whilst you do so. Pause at the top then reverse the movement and repeat for the recommended number of reps (or time).