Invacare Matrx Vi Wheelchair Cushion – Skin Protection Cushion with Visco Foam Insert, 300 lb Capacity
$240.99
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✔ 300 lb Weight Capacity
✔ Three-Part High Resilient Foam
✔ Visco Foam Ischial Insert
✔ 4 Sizes, 16″ to 20″ Wide
✔ Moisture-Resistant Inner Cover
✔ Slip-Resistant Base, Lifting Strap
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Description
Invacare Matrx Vi Wheelchair Cushion – Skin Protection Wheelchair Cushion With a Molded Visco Foam Insert
The Matrx Vi cushion is Invacare’s layered foam seat cushion for wheelchair users who need both skin protection and positioning. Invacare says the Vi is designed to provide skin protection and positioning for individuals at moderate to high risk of skin breakdown. It’s rated for users up to 300 lbs in the standard sizes we carry.
Invacare builds this skin protection wheelchair cushion with dual-density HR foam layers and a three-part construction that targets skin protection and pressure reduction: a soft high resilient (HR) foam top layer, a firm HR foam bottom layer, and a molded visco-elastic foam insert placed under the ischial and sacral area (the sitting bones and tailbone). Invacare says the insert lets those bony spots sink in, while the contoured foam around it keeps the hips, pelvis and legs steady.
The Invacare Matrx Vi comes with a zippered, moisture-resistant inner cover and a breathable, moisture-resistant outer cover with a slip-resistant base, hook and loop fasteners and a lifting strap. Pick your size (width x depth) in the dropdown above to match your wheelchair seat.
Why Choose the Matrx Vi?
The Vi puts its softest material exactly where most pressure builds when you sit: under the sitting bones and tailbone. The rest of the cushion is shaped for stability, with a pre-ischial contour for the pelvis, a trochanteric shelf for the hips and a contour that keeps the legs in a midline position. Invacare also makes the Vi easy to modify. The zippered inner cover gives access to the foam for custom changes, and Invacare lists a pelvic obliquity kit and other options that fit the Vi.
Who Is the Matrx Vi Best For?
The Matrx Vi is a good fit for:
- Full-time wheelchair users who sit for long stretches and want a foam cushion focused on skin protection
- People Invacare describes as being at moderate to high risk of skin breakdown, using the cushion along with their clinician’s skin care plan
- Users who need a contoured cushion that helps keep the pelvis steady and the legs in a midline position
- Anyone who prefers foam over air, so there’s nothing to inflate
- Users up to 300 lbs in a 16″ to 20″ wide wheelchair seat
New to cushion types? Our Wheelchair Seat Cushions Knowledge Base explains foam, gel, air and hybrid cushions, and the Wheelchair Cushion Assessment Tool gives a quick recommendation.
Who May Need a Different Cushion?
- Users over 300 lbs: the standard Vi we carry is rated for 300 lbs. Invacare makes a heavy-duty Vi in wider sizes; call us at 585-505-6665 to order one.
- People who want the lightest, simplest option: the Invacare Matrx PSP Wheelchair Cushion starts at 2.2 lbs and has a polymer insert instead of visco foam.
- People who need adjustable fluid immersion: the Invacare Matrx Libra Wheelchair Cushion has a fluid sac over a foam base and can be tuned with Matrx fit kit parts.
- Children and small adults: Invacare makes a pediatric Kid*ab*ra Vi for seats 12″ to 14″ wide. Ask us.
- Anyone with an open wound or pressure injury: a cushion is one part of skin care. Talk to your doctor or therapist about the right cushion before you order.
Three-Part Foam: Soft Top, Firm Base
The top layer is soft HR foam for comfort and support. The bottom layer is firm HR foam for support and durability. Invacare treats the top layer with Ultra-Fresh for antibacterial and odor protection.
Molded Visco Foam Insert for the Sitting Bones
A molded visco-elastic foam insert sits under the ischial and sacral area (the sitting bones and tailbone). Invacare shaped it to the body so sensitive bony areas can sink in, which Invacare calls immersion.
Contours That Hold You in Position
A pre-ischial contour helps keep the pelvis steady, and an abductor/adductor contour helps keep the legs in a midline position. Underneath, a trochanteric shelf adds stability at the hips. The cushion is 3.75″ tall at the abductor and 3.25″ at the adductor, with a 2.5″ leg trough height.
Waterfall (Beveled) Front Edge and Rear Radius
The front edge slopes down in what Invacare calls a waterfall or beveled front edge, and the rounded rear (rear radius) gives sacral support against the wheelchair back.
Two Covers With a Zippered Inner Cover
The inner cover is moisture resistant and wipes clean, and its zipper gives access to the foam for modifications. The outer cover is moisture resistant and breathable, with a slip-resistant base, hook and loop fasteners and a lifting strap.
Choosing Your Options
There’s one dropdown: Size (W x D), the cushion’s width by depth in inches. Match it to your wheelchair’s seat width and seat depth, not to the person’s hip size. All four sizes have the same construction and covers; only the footprint changes.
| Size (W x D) | Invacare item # | Fits seat width | Fits seat depth |
|---|---|---|---|
| 16″ x 16″ | MA1616-VI | 15″ to 16″ | 16″ to 17″ |
| 18″ x 16″ | MA1816-VI | 17″ to 18″ | 16″ to 17″ |
| 18″ x 18″ | MA1818-VI | 17″ to 18″ | 18″ to 19″ |
| 20″ x 18″ | MA2018-VI | 19″ to 20″ | 18″ to 19″ |
Matrx notes that the Vi’s actual width is ½” narrower than the stated size and its actual depth is 1½” longer, because of the rear cushion radius. That’s why a 16″ x 16″ Vi fits a seat 15″ to 16″ wide and 16″ to 17″ deep. Need a size that isn’t listed? Invacare makes other widths and depths in the Matrx line; call us at 585-505-6665.
Matrx Vi vs. Matrx PSP
Both are Invacare Matrx foam cushions rated for 300 lbs in standard sizes, both have moisture-resistant covers, and both carry a 2-year limited warranty on Invacare’s sheets. The Vi is the deeper-contoured skin protection cushion: a soft-and-firm foam build with a molded visco foam insert under the sitting bones, 3.75″ tall at the abductor, starting at 3 lbs. The Matrx PSP is lighter and simpler: one molded foam base with a polymer insert, 3.5″ tall, starting at 2.2 lbs. If skin protection is the main goal, the Vi is the stronger pick. If you mainly want a light, low-fuss cushion with some protection and positioning, look at the PSP. For adjustable fluid immersion, see the Matrx Libra.
Common Problem → Matrx Vi Solution
Problem: Dad spends most of the day in his wheelchair. His old flat foam cushion has packed down, he ends up leaning by the afternoon, and his nurse has asked the family to keep a close eye on his skin.
Solution: The Matrx Vi puts a molded visco foam insert under his sitting bones and tailbone, while the pre-ischial contour and trochanteric shelf help keep his pelvis and hips steady. The moisture-resistant covers help with spills, and his nurse can still follow her own skin care plan.
“Will it fit his 18 x 16 chair?” Yes. Choose the 18″ x 16″ size; Matrx says it fits seats 17″ to 18″ wide and 16″ to 17″ deep.
Sizing & Fit
- Seat width: measure across the wheelchair seat, side to side. Pick the size whose fit range covers it (table above).
- Seat depth: measure from the back upholstery to the front edge of the seat.
- Height: the Vi is 3.75″ tall at the abductor (between the knees) and 3.25″ at the adductor, with a 2.5″ leg trough height. It raises the user, so check armrest and footrest heights.
- Weight capacity: 300 lbs in standard sizes.
- Not sure? Call us at 585-505-6665 with your chair’s make and seat size.
Care & Cleaning
Invacare says the Vi’s cover is washable; follow the washing instructions in the owner’s manual that comes with the cushion. The inner cover is moisture resistant and wipes clean. Check the cushion and covers regularly, and keep the cushion facing the right way (the rounded rear goes against the wheelchair back). Questions? Call us at 585-505-6665.
What’s Included
The Vi comes with its inner cover and outer cover on the foam cushion. Invacare sells the pelvic obliquity kit, the cushion rigidizer (a solid insert for sling seats), the drop base and custom modifications separately; they aren’t part of this listing. Ask us if you need one.
Warranty
Invacare’s Matrx Vi sheet lists a 2-year limited warranty on the standard Vi. Ask us for the current warranty terms. As an authorized Invacare dealer, we’ll help with any claim.
Key Features
✔ 300 lb Weight Capacity
✔ Three-Part High Resilient Foam
✔ Visco Foam Ischial Insert
✔ 4 Sizes, 16″ to 20″ Wide
✔ Moisture-Resistant Inner Cover
✔ Slip-Resistant Base, Lifting Strap
Product Specifications
| Brand | Invacare (Matrx line, made by Motion Concepts) |
| Model | Matrx Vi Cushion (standard) |
| Invacare Item # | MA1616-VI, MA1816-VI, MA1818-VI, MA2018-VI |
| Type | Skin protection and positioning foam wheelchair cushion |
| Sizes (W x D) | 16″ x 16″, 18″ x 16″, 18″ x 18″, 20″ x 18″ |
| Actual Size | Width ½” narrower than stated; depth 1½” longer than stated (rear radius) |
| Weight Capacity | 300 lbs (standard sizes) |
| Cushion Weight | 3 lbs and up, depending on size |
| Height at Abductor / Adductor | 3.75″ / 3.25″ |
| Height at Leg Trough | 2.5″ |
| Top Layer | Soft high resilient foam, pre-ischial contour, abductor/adductor contour, Ultra-Fresh antibacterial and odor protection |
| Insert | Molded visco-elastic foam ischial relief insert (ischial/sacral area) |
| Bottom Layer | Firm high resilient foam with trochanteric shelf |
| Edges | Waterfall front edge, rear radius |
| Inner Cover | Moisture resistant, wipes clean, zippered |
| Outer Cover | Moisture resistant and breathable; slip-resistant base, hook and loop fasteners, lifting strap |
| Options (sold separately) | Pelvic obliquity kit (½” or 1″), cushion rigidizer, drop base, custom modifications |
| Warranty | 2-year limited (Invacare Matrx Vi sheet) |
Frequently Asked Questions
What is the Invacare Matrx Vi cushion?
It’s a foam wheelchair seat cushion built for skin protection and positioning. It has a soft foam top layer, a firm foam bottom layer and a molded visco foam insert under the sitting bones, inside a zippered inner cover and a breathable outer cover.
Who is the Matrx Vi made for?
Invacare says the Vi is designed for individuals at moderate to high risk of skin breakdown who need skin protection and positioning. Your doctor or therapist can tell you if it suits your needs.
How much weight does it hold?
The standard Vi sizes we carry are rated for 300 lbs. Invacare makes a heavy-duty Vi for larger users; call us to order one.
What size should I order?
Match the cushion to your wheelchair seat width and depth. For example, the 18″ x 16″ fits seats 17″ to 18″ wide and 16″ to 17″ deep, per Matrx. The full fit table is in the Choosing Your Options section.
Why is the cushion a different size than the label?
Matrx makes the Vi ½” narrower and 1½” longer than its stated size because of the rounded rear (rear radius) that sits against the wheelchair back. The fit ranges already account for this.
How tall is the Vi?
It’s 3.75″ tall at the abductor and 3.25″ at the adductor, with a 2.5″ leg trough height. Check that armrests and footrests still sit right after you add it.
How much does it weigh?
Invacare lists the standard Vi at 3 lbs and up, depending on size.
Does it need to be inflated or adjusted?
No. The Vi is foam with a visco foam insert, so there’s no air to pump or check.
Can the cushion be modified?
Yes. The zippered inner cover gives access to the foam, and Invacare offers custom modifications (leg length differences, width or depth reductions) and a pelvic obliquity kit for ½” or 1″ obliquities. Those are ordered separately; call us.
How do I clean it?
Invacare says the cover is washable; follow the instructions in the owner’s manual. The inner cover is moisture resistant and wipes clean.
How is the Vi different from the Matrx PSP and Libra?
The Vi uses a visco foam insert in a contoured foam cushion. The PSP is lighter, with a polymer insert in molded foam. The Libra has a fluid sac over a foam base that can be adjusted with fit kit parts.
What warranty does it have?
Invacare’s Matrx Vi sheet lists a 2-year limited warranty. Ask us for the current terms.
🔗 Wheelchair Cushion Guides, Answers & Tools
Not sure which cushion fits your chair or your needs? These pages help you compare, and you can call us at 585-505-6665 any time.
👉 Best Wheelchair Seat Cushion Guide: How to Choose the Right Cushion
👉 Wheelchair Seat Cushions Knowledge Base
👉 Wheelchair Cushion Assessment Tool
👉 A Guide to Wheelchair Cushions and Support Accessories for the Elderly
PRODUCT SPECIFICATION
| Brand: | Invacare (Matrx line, made by Motion Concepts) |
| Model: | Matrx Vi Cushion (standard) |
| Invacare Item #: | MA1616-VI, MA1816-VI, MA1818-VI, MA2018-VI |
| Type: | Skin protection and positioning foam wheelchair cushion |
| Sizes (W x D): | 16″ x 16″, 18″ x 16″, 18″ x 18″, 20″ x 18″ |
| Actual Size: | Width ½” narrower than stated; depth 1½” longer than stated (rear radius) |
| Weight Capacity: | 300 lbs (standard sizes) |
| Cushion Weight: | 3 lbs and up, depending on size |
| Height at Abductor / Adductor: | 3.75″ / 3.25″ |
| Height at Leg Trough: | 2.5″ |
| Top Layer: | Soft high resilient foam, pre-ischial contour, abductor/adductor contour, Ultra-Fresh antibacterial and odor protection |
| Insert: | Molded visco-elastic foam ischial relief insert (ischial/sacral area) |
| Bottom Layer: | Firm high resilient foam with trochanteric shelf |
| Edges: | Waterfall front edge, rear radius |
| Inner Cover: | Moisture resistant, wipes clean, zippered |
| Outer Cover: | Moisture resistant and breathable; slip-resistant base, hook and loop fasteners, lifting strap |
| Options (sold separately): | Pelvic obliquity kit (½” or 1″), cushion rigidizer, drop base, custom modifications |
| Warranty: | 2-year limited (Invacare Matrx Vi sheet) |
Shipping & Returns
Shipping & Return Policy
At MedCare Mobility, we understand that purchasing medical and mobility equipment is an important decision. Our goal is to make the ordering, delivery, and return process as clear and straightforward as possible.
Because many of the products we offer are large, specialized, or shipped directly from manufacturer and distributor warehouses, shipping and return requirements may vary somewhat by product and brand. The policy below explains what you can generally expect when ordering from MedCare Mobility.
Shipping & Order Processing
We ship medical and mobility equipment to customers throughout the United States. Orders are processed as quickly as possible, and tracking information is provided once available.
Processing Time
Most in-stock orders are processed within approximately 1–3 business days. Processing may include order verification, warehouse preparation, packaging, and coordination with the manufacturer or distributor.
Some specialty equipment, made-to-order products, oversized items, or products shipping directly from a manufacturer may require additional processing time. Any estimated processing or lead time shown on an individual product page should be considered part of the expected fulfillment timeframe for that item.
Transit & Delivery Time
Once shipped, many standard orders arrive within approximately 3–7 business days. Larger medical equipment, freight shipments, specialty products, and certain manufacturer-direct orders may require additional transit time.
Tracking information will generally be emailed once the shipment has been processed by the carrier. If you have questions regarding the status of your order, please contact us at info@medcaremobility.com.
Alaska, Hawaii & Special Shipping Areas
Orders shipping to Alaska, Hawaii, and certain remote or limited-access areas may be subject to additional shipping charges. If an additional charge is required after your order is reviewed, we will contact you before proceeding whenever additional payment is necessary.
Freight & Oversized Equipment
Hospital beds, patient lifts, large recliners, ramps, and other oversized medical equipment may ship by freight rather than standard parcel service. Unless a specific delivery service is stated on the product page or order, freight delivery does not automatically include inside delivery, assembly, installation, or removal of packaging.
30-Day Return Policy
We want you to feel comfortable ordering from MedCare Mobility. Most eligible products may be returned when a return is requested within 30 days of delivery, subject to the conditions and exclusions outlined below.
Eligible products generally include:
- Electric and power wheelchairs
- Manual and lightweight wheelchairs
- Mobility scooters
- Walkers and rollators
- Patient lifts
- Wheelchair ramps
- Hospital and homecare beds
- Eligible medical mattresses
- Geriatric and medical recliner chairs
- Overbed tables
- Bathroom benches and shower chairs
- Other eligible medical and mobility equipment
Return eligibility can vary by manufacturer and product type. Products specifically identified as non-returnable, custom, made-to-order, or otherwise subject to special return terms are governed by those terms.
Return Authorization
Please contact us before shipping any product back. Returns must first be approved and issued a Return Authorization (RA) and the appropriate return shipping address.
You may request a return by emailing info@medcaremobility.com or contacting our customer service team through the live chat on our website.
Please do not return merchandise to an address shown on the original shipping label unless specifically instructed to do so. Many products ship directly from manufacturer or distributor warehouses, and the correct return location may be different from the original shipping location.
Condition of Returned Merchandise
To qualify for a return and refund, the product must be returned:
- In brand-new and unused condition
- In its complete original manufacturer packaging
- With all manuals, components, hardware, accessories, and included materials
- Without damage, modification, assembly wear, stains, odors, or other signs of use
- In resalable condition upon inspection by the receiving warehouse or manufacturer
We strongly recommend keeping the original box, pallet, protective materials, and packaging until you are certain that you intend to keep the equipment. Large medical equipment can be difficult or impossible to return safely without its original packaging.
Restocking Fees
Approved returns are subject to a mandatory restocking fee, generally ranging from 15% to 20% of the applicable product price. The exact restocking percentage varies depending on the manufacturer, brand, and type of equipment being returned.
These restocking charges are assessed to us by the manufacturer or distributing warehouse when merchandise is returned. MedCare Mobility does not add the fee simply as a return penalty; when the manufacturer requires the charge, we must pass the applicable amount through as part of processing the return.
If you would like to know the applicable restocking percentage for a particular product before ordering, please contact us and we will be happy to help whenever that information is available from the manufacturer.
Return Shipping & Shipping Charges
The customer is responsible for shipping charges associated with the order when making a standard return.
Customers are responsible for arranging for the approved merchandise to be returned to the return address provided with the Return Authorization. In certain cases, we may be able to provide a prepaid return label or coordinate return transportation for your convenience. When provided, the applicable shipping cost may be deducted from the final refund.
Because some medical equipment is oversized or requires freight transportation, prepaid labels or carrier call tags may not be available for every product. Our customer service team will provide the available return instructions when your return is authorized.
Non-Returnable Products
For health, hygiene, safety, customization, and manufacturer-policy reasons, certain products are not eligible for standard returns.
We currently do not accept returns on:
- Parts & accessories
- Wheelchair cushions and support accessories
- Patient lift slings
- Custom or made-to-order products
- Products specifically identified as non-returnable on the product page
If a non-returnable product arrives damaged, defective, or incorrect, please contact us promptly. Non-returnable status does not prevent us from assisting with a legitimate shipping damage, defect, warranty, or fulfillment issue in accordance with the applicable manufacturer and carrier procedures.
Damaged or Incorrect Orders
We take shipping damage seriously and will work with you to help resolve legitimate delivery issues.
If your product arrives damaged, please notify MedCare Mobility within 48 hours of delivery. Whenever possible, retain the shipping carton, pallet, packaging materials, and the product exactly as received and take clear photographs of the packaging and any visible damage.
Reporting damage promptly is important because carriers and manufacturers have limited timeframes for filing freight and shipping claims.
If you receive an incorrect product or believe there is a manufacturer defect, please contact us before returning or disposing of any merchandise or packaging so that we can provide the appropriate instructions.
Refused Deliveries
Please contact us before refusing a delivery unless the shipment has obvious significant freight damage and the carrier is documenting the damage at delivery.
A shipment that is refused for reasons unrelated to verified shipping damage may be treated as a standard return. Applicable restocking and shipping charges may therefore be deducted from the refund.
Return Shipping Deadline
Once a return has been approved and return instructions or a return label have been issued, the merchandise must be shipped within 72 hours unless MedCare Mobility provides different instructions in writing.
This is particularly important when a return is approaching the end of the applicable return period. Returns shipped outside the authorized timeframe may be refused by the manufacturer or warehouse and may no longer qualify for a refund.
Refund Processing
Refunds are processed after the returned merchandise has been received and inspected by the applicable warehouse or manufacturer and the return has been confirmed to meet the return requirements.
The applicable restocking fee, shipping charges associated with the order, and any other authorized return-related charges will be deducted from the amount eligible for refund.
If returned merchandise is used, damaged, incomplete, missing original packaging or components, or otherwise returned in a condition that prevents the manufacturer or warehouse from accepting it as new and resalable merchandise, the return may be refused or the refund may be reduced in accordance with the manufacturer’s assessment.
Custom & Made-to-Order Products
Products identified as custom, configured, made-to-order, special-order, or manufactured specifically for the customer cannot generally be canceled once production or manufacturer processing has begun and are not eligible for standard returns.
For custom products, cancellation may only be possible during the initial processing period and before production or customization begins. Because production schedules vary by manufacturer, we encourage customers to contact us immediately if a change is required.
If a custom product arrives damaged or has a legitimate manufacturing defect, we will work with the manufacturer to pursue the appropriate resolution, replacement components, repair, or other available remedy under the applicable manufacturer policy or warranty.
Questions Before Ordering?
Medical equipment can vary considerably in size, configuration, compatibility, and intended use. If you are unsure whether a product will work for your needs, we strongly encourage you to contact us before placing your order.
Our team is happy to help review product specifications, dimensions, options, compatibility, and available manufacturer information so you can make a more informed purchasing decision and reduce the possibility of needing a return.
For shipping, return, or product questions, contact us at info@medcaremobility.com or speak with us through the live chat on our website.
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