Upright posture correction to create a healthy and upright posture. With the corrective posture corrector, you can train a healthy natural posture. With additional underarm padding, you can increase wearing comfort. Made of lightweight, latex-free neoprene, this shoulder strap can be worn comfortably and discreetly under clothing. It looks inconspicuous when worn comfortably on T-shirts, tights or shirts, but you can make full use of the straight collet, and you will feel it immediately as your attitude improves. Develop good habits in 3 weeks-15-20 minutes a day at the beginning is enoughWhether it is driving, at the desk or on the sofa at home. You will be surprised how effective the posture trainer isAfter a few days, increase the wearing time to a few hours based on your performance. -The posture trainer can help you maintain an upright and correct posture, and remind you to wear it while riding. Regular use will make you feel better and better, which will further improve your quality of life.Tips:-We do not recommend using it during exercise, eating or sleeping, so as not to affect blood flow. -Your back and shoulders will adjust slowly, and you will build muscle memory for the correct posture. -Postural support should only be used as a training tool to help you retrain to normal.Delivery: 1 X Posture TrainerS: Weight 20-45kg/chest 38-66cmM: Weight 45-80kg/chest circumference 66-110cmL: weight 80-150kg/ chest circumference 110-150cm