The SISSEL Shirt is an innovative tool designed to promote healthy posture. It was developed to encourage an upright posture while simultaneously engaging the muscles. The shirt is made of a stretchy, breathable fabric that gently pulls against the back, helping to bring the shoulders into a natural, ergonomic position.

When the shoulders are in an optimal, pulled-back position, this activates the core muscles, which in turn supports and promotes proper posture whether sitting or standing. The shirt’s Posture Alignment Technology constantly reminds you to maintain correct shoulder alignment and an upright sitting posture. Available in women’s and men’s styles, each in 4 sizes. The internal fabric reinforcement on the back gently encourages the upper body to maintain an upright posture.