Easy-to-wear posture corrector helps straighten your shoulders and spine, relax tense muscles and improve your breathing. Powerful therapeutic magnets are sewn in to help increase circulation and relieve aches. Cotton lined for comfort. Fully adjustable straps. Can be worn discreetly under clothing. For women and men. Regular (fits waists 28"- 38"), Large (fits waists 38" - 48"), 1X (fits waists 48"-60").