Bodyweight standing one arm row (with towel)

Stand with your feet shoulder-width apart, knees slightly bent, and hold a towel with one hand. Bend forward at the hips, keeping your back straight and your core engaged. Pull the towel towards your chest, squeezing your shoulder blades together. Pause for a moment at the top, then slowly lower the towel back to the starting position. Repeat for the desired number of repetitions, then switch to the other arm.