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J3 Backrest Wheelchair Back

The most versatile JAY wheelchair backrest now with optional HV Technology.


The JAY® J3® wheelchair back range offers a multitude of different widths, heights, and contoured depth back shells to suit the clients individual positional needs. Each backrest is lightweight and adjustable, with numerous hardware choices allowing for easy installation.

Designed to specifically address the pelvic and trunk stability needs of the bariatric client, the Backrest features an optional lower vanity shell extension that can pivot to accommodate redundant tissues, allowing proper positioning without interference. Accommodating up to 227kg (500lb) in widths of up to 66cm (26inch), the J3 Plus Backs are available with either TH 2-point or FS 4-point hardware and features a 2.2″ deep contour to provide for non-restricted movement.



Five Contour Shapes

The Jay J3’s solid shell is available in five contour shapes to provide posterior and lateral pelvic and lateral thoracic stability to wheelchair clients with varying postures and functional needs.

Posterior (PA) – 2.2″ of lateral thoracic support
Posterior Lateral (PL) – 3″ of lateral thoracic support
Posterior Deep (PD) – 6″ of lateral support
Posterior Deep Lateral (PDL) – 6″ of lateral thoracic support
Posterior Deep Contour (PDC) – 6″ of lateral pelvic support

Four Support Height Levels

The JAY J3 wheelchair back is available in four different height levels to provide support for clients with wide ranges of torso heights and accomodate different levels of injury.

Lower Thoracic – 6.5″ to 9.5″
Mid Thoracic – 12″ to 15″
Upper Thoracic – 16.5″ to 19.5″
Shoulder – 21″ to 24″

Four Hardware Options

The J3 Backrest offers four hardware options to accommodate a span of priorities and wheelchair configurations.

SH – Easy to install, 2-point, quick-release hardware that allows for numerous attaching positions
RH – 25% lighter than SH hardware and optimized for ultra lightweight wheelchairs without compromising adjustability
TH – 2-point, quick-release hardware optimized for tilt-in-space wheelchairs, with a lengthened attachment pin and 226kgs weight capacity
4-Point – Quick-release hardware that withstands greater force by distributing across four mounting locations

Spine-Align: Let the Back Fit the User

Fitting the back to the user not the user to the back is the goal of the Spine-Align Posture Conforming system. This is accomplished by combining a wide range of individual foam components to create unique shapes that optimize postural support, evenly distribute pressure, and maximize function. Velcro strips attach to each shape so they can be placed into hundreds of configurations. The flexibility of the system is boundless.

Heating/Ventilation (HV) Surface Technology

The J3 Wheelchair Back now offers heating/ventilation technology designed to help manage an individual’s microclimate for exceptional comfort. Too hot? Flip the switch to cool down. Too cold? Flip the switch to warm up.


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Width:12″ to 26″
Height:Lower Thoracic: 6.5″, 8″, 9.5″ / Mid Thoracic: 12″, 13.5″, 15″ / Upper Thoracic: 16.5″, 18″, 19.5″ / Shoulder Height: 21″, 22.5″, 24″
Maximum User Weight:12″ to 20″ widths: 136kgs / 22″ to 26″ widths: 226kgs
Product Options
Support Level:Low Thoracic, Mid Thoracic, Upper Thoracic, Shoulder High
Cover Type:Air Exchange / Microclimatic
Contour:Shallow, Mid Contour, Deep Contour, Mid Deep Contour and Posterior Deep Contour



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