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Matrx Posture Back Deep

The Matrx Posture Back Deep by Motion Concepts has a contour depth of 7" to provide midline support and positioning. The extensive range of sizes provides exceptional comfort and support to suit a wide range of user needs.


Available in 16" to 20" widths

Fits wheelchairs 15" to 21" wide

Height options 16" or 20"


Matrx Posture Back Deep - Features and Benefits

Outer Cover:

• Moisture resistant and breathable

• Available in standard black



• Moulded foam wraps around shell for maximum comfort and protection

Sacral / Lumbar Support:

• Removable foam positioning pad


Back Shell:

• 7" contoured shell provides exceptional midline support and positioning

• Durable, lightweight ABS plastic back shell includes built-n plate for headrest attachment



Includes standard Posture Back Mounting Hardware, tools and accessories

"Easy set" hardware installed and adjusted in minutes - adjustments can be made while user is seated in a wheelchair

Quick release for easy portability

Infinite adjustment of depth (4"), angle (40°) and rotation

Fits ¾", 7/8" and 1" diameter back canes

Adjusts to fit chairs 1" narrower to 1" wider

Weight limit:

135kgs / 300lbs


• 400mm / 16" (regular)

• 500mm / 20" (tall)

Product code:

PBD#### (width x depth)

Eg, Matrx Posture Back Deep 18x16 = PBD1816

Full dimensions and sizing information available under Download


Also in Matrx Posture Back series:

Matrx Posture Back (5" contour)

Posture Back Paediatric (5" contour)

Heavy Duty Posture Back (5" contour for bariatric users)

  • Standard available in 16x16, 16x20, 18x16, 18x20, 20x16, 20x20