Place a straight-bar attachment as high up on a cable stand as possible.
Grab the attachment using an overhand grip, hands spaced shoulder-width apart, maintaining a roughly 30 degree bend in your elbows.
Keep a solid stance with your feet at about shoulder width apart, either directly side by side or with one foot slightly in front of the other.
With your lower back slightly arched, chest puffed out and torso leaning forward, pull the cable attachment down in a circular motion until your arms are at your sides and you feel a strong contraction in your lats.
Raise the bar back up under control until it is directly overhead and you feel a good stretch in your lats before pulling the weight back down again.