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Matrx Posture Back

The Matrx Posture Back by Motion Concepts has a contour depth of 5" 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 14" to 20"

Fits 13" to 21" wheelchairs

Height options 12", 16" or 20"


Matrx Posture Back - Features and Benefits

Outer Cover:

• Moisture resistant and breathable

• Available in standard black or Kidabra print for paediatric sizes by request



• Moulded foam wraps around shell for maximum comfort and protection

Sacral / Lumbar Support:

• Removable foam positioning pad


Back Shell:

• 5" contoured shell provides exceptional midline support and positioning

• Durable, lightweight ABS plastic back shell includes built-in 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


• 300mm / 12" (short)

• 400mm / 16" (regular)

• 500mm / 20" (tall)

Product code:

MPB#### (width x depth)

Eg, Matrx Posture Back 18x16 = MPB1816

Full dimensions and sizing information available under Download


Also in Matrx Posture Back series:

Posture Back Paediatric (5" contour)

Heavy Duty Back (5" contour for bariatric users)

Posture Back Deep (7" contour)

  • Bariatric available in 20x16, 20x20, 22x16, 24x16 (see Heavy Duty Back for further information)
  • Paediatric available in 14x12, 14x16
  • Standard available in 16x12, 16x16, 16x20, 18x12, 18x16, 18x20, 20x12, 20x16, 20x20