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Matrx PS Heavy Duty Cushion (Bariatric)

The Matrx PS (Posture Seat) Heavy Duty by Motion Concepts is designed to provide superior positioning, stability and comfort. The design features an anatomically contoured shape with a unique waffled ischial relief recess and an innovative reversible outer cover. 


Paediatric 12x12 to 14x14

Standard 14x16 to 20x20

Heavy Duty (Bariatric)  22x18 to 28x22

All sizes are customisable


How we measure our cushions

Matrx PS Heavy Duty Cushion - Features and Benefits



Durable high resilient foam prevents 'bottoming out'

Anatomically moulded shape for optimal leg and pelvic positioning and comfort

Rear radius for sacral support

Waterfall front edge

• Made with Ultra-Fresh for antibacterial and odour protection

Ischial relief area:

Waffled recess provides immersion of bony prominences

Helps maintain pelvic position and prevent sliding

Inner cover:

Moisture resistant and easily wiped clean

Protects the cushion from incontinence

• Allows access for cushion modifications

Outer cover:

Made from moisture resistant and breathable dartex fabric

Hook and loop velcro strips


Weight limit:

266kgs / 600lbs

Height (adductor):

Heavy Duty 101mm / 4"

Height (abductor):

88.9mm / 3.5"

Height (leg trough):

63.5mm / 2.5"

Product code:

PS#### (width x depth)

Eg, PS 22x20 = PS2220

Full dimensions and sizing information available under Download

  • Heavy Duty available in 22x18, 22x20, 24x18, 24x20, 26x20, 26x22, 28x20, 28x22