Invacare Matrx PB Wheelchair Back Support System

The Invacare Matrx PB Wheelchair Back is a versatile positioning back designed to provide improved posture, comfort, and midline support. Featuring a contoured design with molded foam, this system delivers structured support while maintaining flexibility for everyday wheelchair use.

Need help choosing the right wheelchair back system? Call 866-218-0902 to speak with a specialist.

Quick Summary

• Contoured back support for improved posture and alignment
• Molded foam design enhances comfort and stability
• Approx. 5" contour depth for balanced support
• Available in multiple widths and heights
• Ideal mid-tier upgrade from basic cushions

Why Choose the Matrx PB Back?

The Matrx PB Back is designed for users who need more support than basic cushions but do not require aggressive positioning systems. Its contoured shape provides midline support and improved posture, helping reduce fatigue and increase comfort during extended wheelchair use.

With a molded foam interior and structured backing, it offers a balance of comfort and support, making it ideal for everyday use across a wide range of users. 

Key Features

• Contoured Design: Supports natural spinal alignment
• Molded Foam Cushioning: Wraps around the back for comfort
• Mid-Level Positioning Support: Helps maintain posture without aggressive contouring
• Multiple Size Options: Ensures proper fit for different users
• Lightweight Construction: Maintains mobility and ease of use

Who Is This Back System Best For?

• Users needing mild to moderate positioning support
• Individuals upgrading from basic lumbar or sling-back cushions
• Wheelchair users seeking improved comfort and posture
• Everyday use in home or clinical settings

Positioning Level Comparison

Matrx PB = Mid-Level Support
Stronger than lumbar cushions, but less aggressive than Elite or Deep contour systems. This makes it a versatile choice for many users.

Key Specifications

• Brand: Invacare
• Model / Part Number: MPB-V (varies by size)
• Product Type: Wheelchair Back Support System
• Contour Depth: Approx. 5 inches
• Material: Molded foam over rigid shell
• Sizes: Multiple width and height options
• Use: Positioning, posture support, comfort

Frequently Asked Questions

What level of support does the Matrx PB Back provide?

The Matrx PB provides mid-level positioning support, making it ideal for users who need better posture and stability than basic cushions without requiring aggressive lateral supports.

What is the contour depth of the Matrx PB Back?

The Matrx PB Back has an approximate 5-inch contour depth, offering a balance between comfort and structured support.

How is the Matrx PB different from the Elite or Deep models?

The PB is a moderate support system, while the Elite offers more structure and the Deep versions provide aggressive lateral trunk support for advanced positioning needs.

Is this a pressure relief cushion?

No. The Matrx PB is a back support system. Pressure relief should be addressed with a seat cushion.

Will this fit my wheelchair?

Yes. The Matrx PB Back is designed to fit most standard wheelchairs and is available in multiple widths and heights for proper fit.

Is this good for long-term wheelchair users?

Yes. The contoured support and foam design help improve posture and reduce fatigue during extended daily use.

Does this help with posture?

Yes. The contoured shape provides midline support, helping users sit more upright and maintain proper alignment. 

Can I upgrade later to a more advanced back system?

Yes. Many users start with the Matrx PB and later move to Elite or Deep systems if additional positioning support is needed.

Upgrade Your Wheelchair Seating

Pair the Matrx PB Back with a pressure relief seat cushion for a complete seating system. This combination improves posture, enhances comfort, and supports long-term wheelchair use.

Call 866-218-0902 for expert help building the right seating system.