Stand with a heavy kettlebell to the outside of your left foot, feet about hip-distance apart. Hinge forward from waist and push hips toward back wall, bending knees and keeping back flat and chest up; grasp the kettlebell in your left hand.
Push through heels and stand up, bringing kettlebell to outside of left thigh while keeping arm straight; squeeze glutes at the top of the movement. Slowly lower kettlebell back to touch the floor and repeat reps for set; switch sides.