Jay J3 posterior deep contour back offers a multitude of width, height, and contour depth back shells to fit the back to the client. The J3 wheelchair back is the most versatile wheelchair back for with different support height levels. Each back is lightweight and adjustable, with numerous hardware choices allowing for easy installation. Posterior deep contour has 6" of lateral pelvic support which provide posterior and lateral stability to clients with varying postures and functional needs. Four support height levels to provide support for clients with wide ranges of torso heights and levels of injury.