A golf swing training device constructed of flexible material that stretches when deployed and that provides feedback to a user during golf swing execution regarding vertical head movement and hip rotation. The device includes a collar portion, a first tension strap, and a second tension strap. The first tension strap includes a first extension portion being adapted to be disposed along a back of the user from the collar portion down toward a waist of the user and a second extension portion that is adapted to extend from the waist at the user's back to the ground at a predetermined angle, wherein the first tension strap includes a first pass-through region disposed between the first extension portion and the second extension portion. A second tension strap includes a second attachment means at one end and a third attachment means at a second end.