Matrx PSP Heavy-Duty Cushion

The Invacare Matrx PSP Heavy-Duty Cushion is a lightweight, contoured wheelchair cushion designed to provide positioning, stability, and enhanced skin protection for users requiring larger seat dimensions and higher weight capacity. Built on the supportive foundation of the Matrx PS Heavy-Duty foam base, the PSP Heavy-Duty adds a molded polymer overlay to help reduce shear and provide an added layer of skin protection during daily wheelchair use.

Designed for bariatric seating needs, the Matrx PSP Heavy-Duty Cushion combines high-resilience foam support, anatomical contouring, and a waffled ischial relief recess to help maintain pelvic position, improve seated stability, and reduce pressure under sensitive seated areas. Its heavy-duty design makes it a practical option for manual and power wheelchair users who need dependable positioning support with added pressure and shear management in a larger, higher-capacity cushion.

Key Features

• Heavy-Duty Weight Capacity: Supports users up to 600 lbs. for larger wheelchair seating applications
• Larger Size Availability: Offered in larger width and depth options for wider wheelchair configurations
• Posture Seat Polymer Design: Combines the stability of a contoured foam base with a molded polymer overlay for added skin protection and shear reduction
• Lightweight Contoured Foam Base: High-resilience molded foam provides stable support while keeping the cushion easier to handle than many fluid or air-based systems
• Waffled Ischial Relief Recess: Helps immerse bony prominences beneath the pelvis and reduce pressure in the ischial area
• Positioning & Stability Support: Anatomical contouring helps promote pelvic alignment, seated control, and neutral leg positioning
• High-Resilience Foam with Ultra-Fresh™ Protection: Durable foam includes antimicrobial and odor protection for long-term freshness
• Waterfall Front Edge: Helps reduce pressure behind the knees and may better accommodate users with tight hamstrings or foot propulsion

Additional Features & Details

• Reversible cover with breathable Startex™ fabric on one side and a smooth, wipeable infection-control surface on the other
• Machine-washable cover designed for easier everyday care
• Hook-and-loop fastener strips help secure the cushion to the wheelchair seat
• Moisture-resistant inner cover helps protect the cushion core
• Designed to provide offloading to the hips and thighs for improved support and stability
• Available in heavy-duty sizes for larger seating needs
• Optional accessories may include cushion rigidizer, pelvic obliquity kit, or custom modifications
• Suitable for both manual and power wheelchair users
• Low-maintenance design requires no air, gel, or fluid adjustment

* Actual width is 1/2" narrower than stated width
** Actual Depth is 1 1/4" longer than stated depth

Heavy-Duty Skin Protection, Positioning & Shear Reduction

The Matrx PSP Heavy-Duty Cushion is designed for users who need the comfort and stability of a contoured foam cushion with additional skin protection in a larger, higher-capacity format. The molded polymer overlay helps reduce shear, while the contoured foam base supports pelvic alignment and seated posture.

The waffled ischial relief recess helps reduce pressure beneath sensitive areas, and the cushion’s anatomical contours support the pelvis, hips, and thighs for improved stability. This makes the PSP Heavy-Duty a strong option for bariatric users, long-term wheelchair users, and care environments where a durable, low-maintenance cushion with added protection is needed.

Outer Cover Design

The Matrx PSP Heavy-Duty Cushion includes a reversible, machine-washable cover designed for everyday care needs. One side features breathable Startex™ fabric for comfort and airflow, while the smooth side provides a wipeable infection-control surface for easier cleaning. This gives users and caregivers flexibility based on comfort preference, care environment, and moisture-management needs.

Hook-and-loop fastener strips help keep the cushion positioned securely on the wheelchair seat, reducing unwanted movement during daily use. The moisture-resistant inner cover helps protect the cushion core and supports easier long-term maintenance.

Who This Cushion Is Best For

The Invacare Matrx PSP Heavy-Duty Cushion is appropriate for users who need:

• A heavy-duty wheelchair cushion with up to 600 lb weight capacity
• Larger cushion sizing for wider wheelchair seats
• Added shear reduction from a molded polymer overlay
• Contoured foam support for pelvic stability and positioning
• Basic to moderate pressure relief without air, gel, or fluid maintenance
• A durable cushion suitable for manual or power wheelchair use

Need Help Choosing the Right Cushion?

Need help determining whether the Matrx PSP Heavy-Duty Cushion is the right fit? Our team can assist with product guidance to help match the cushion to the user’s wheelchair size, seating needs, weight capacity, skin protection requirements, and daily support needs.

RETURN POLICY:

• Returnable with 30% restock fee. Fee waived for Matrx® product exchanges
• Customer is responsible for return shipping. Aracent Healthcare does not provide shipping labels
• For complete terms and conditions, please review our full Return policy

WARRANTY INFORMATION:

• 2 year limited warranty on material defects and workmanship. Excludes punctures, tears, burns, and the removable outer cover. Applicable to original purchaser only
• Any abuse or intentional misuse of the product will void the warranty
• For full details, please review our Product Warranty page

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