Keep your back from aching during stints at the ballpark or in a fishing boat. This sling tilts the pelvis forward and helps reduce slouching. It will keep your back from aching.
Astronaut Marsha Ivins said NASA
uses the BackUp Nada-Chair.
Nada-Chair is used by physicians
for proper posture. - NewsweekApple's Co-Founder Steve Wozniak
bought Nada-Chair productsNada-Chair's products help people
prevent slouching. - Yoga Journal