Stand upright, holding your dumbbells in each hand, arms at your sides, with your knees slightly bent.
Keeping your arms straight and your knees slightly bent, slowly hinge forward, bending at your hips (not your waist), lowering the weights as far as possible without rounding your back, which should remain straight.
Squeeze your glutes to return to standing, keeping your back straight. Once you're standing, pull the weights up the front of your body, bringing them to your chin with elbows wide. Lower the weights to complete one rep.