Various embodiments are described herein for a garment for improving an individual's posture when the individual wears the garment. The garment may comprise front and rear garment portions to cover at least a front portion and a rear portion respectively of the individual's torso. The garment also includes an adjustable set of straps that are adjustable from a rest position to a tensioned position and are collectively disposed over shoulder regions and under armpit regions of the front and rear garment portions. When the individual wears the garment and adjusts the straps to the tensioned position, the straps exert a downward retraction pulling force on the individual's shoulders and a backward pulling force on the individual's chest region thereby improving the individual's posture.