Upright Posture Corset Anti-Humpback Posturex Corset Medical Upright Posture Anti-Humpback Posturex Corset; The Medical Upright Posture Corset product is a multifunctional and very useful product that ensures an upright posture and provides waist support. The Waist Corset Belt product has 2 plastic bones to ensure that the waist remains upright and firm, thanks to these bones, the waist is kept upright. The anti-humpback Posturex Upright Posture Corset product is compatible with all bodies and can be used by men and women. The Upright Posture Corset prevents posture malposition by pulling the product back from the user's shoulders and prevents the formation of a hunchback. Upright Posture Hunchback Corset.