(as of May 31, 2025 04:53:21 UTC – Details)
The Diono Ultra Mat Fits3 Across is our largest car seat protector yet with complete back seat coverage. Designed to protect your vehicle upholstery from everyday wear and tear with water resistant, high strength fabric. Perfect for 3 across car seats and suitable for all child car seats, boosters, and even the family pet, so you can take the whole family along for the journey. The pentalock technology anti-slip backing prevents slipping, so both the mat and car seat will remain firmly in place. Designed with adjustable slots that provide easy access to your vehicle LATCHUAS//isofix anchor points and featuring a handy front pocket for road trip essentials. Diono Crash tested as standard for added safety.
EXTRA LARGE CAR SEAT PROTECTOR – Designed to cover the entire back seat for complete protection against dirt & scratches to your vehicle upholstery
5 LAYERS OF PROTECTION – Made from 5 layers of high strength, water resistant material, anti-slip backing and finished with premium oxford fabric. Easily wipe off stains with a damp cloth
CRASH TESTED – Diono Crash tested for added safety and suitable for both rear-facing and forward-facing car seats
VERSATILE DESIGN – Ultra Mat Fits3 Across features mesh storage pockets for travel essentials and can also be used to keep your seats clean from pets, so you can take the whole family along for the journey
COMPATIBLE WITH ALL CAR SEATS – Car Seat Protector is perfect for all car seats including 3 across car seats like the Diono Radian All-in-One Convertible Car Seat Series
Customers say
Customers find the car seat cover fits well, with one mentioning it covers the entire back seat. Moreover, the product receives positive feedback for its quality, durability, and ease of installation, with one customer noting it helps prevent wear and tear from small children. Additionally, customers appreciate that it’s easy to clean and provides good coverage, with one mentioning it’s cheaper than a full-detail-cleaning job.
AI-generated from the text of customer reviews
Papa Troll –
A baby registry MUST HAVE!
I’m finally at that stage in life where I get overly excited about the perfect car seat protector. This has been my favorite purchase in my entire eight years of parenting. The Diono Ultra Mat XXXL is a game changer for catching all the little kid crumbs and spills. It’s on the pricey side, but the quality is completely justifiable and cheaper than a full-detail-cleaning job. I just replaced two single seat protectors that have been in our car for years with my first two kids, as we are surprisingly expecting our third. I fully expect to be able to reduce the ungodly amount of hours spent cleaning boogers, and other mysterious substances from the crevices of my beloved vehicle and reclaim my weekends back with my family.We have a smaller cross-over SUV (Toyota Venza), and I originally thought this item would be too large for our backseat, as most products like this tend to not fit well, but luckily, the XXXL name is a little deceiving; it actually fits PERFECTLY across the entire backseat. It would easily fit larger vehicles as well. The holes for the seatbelts appear to be designed to accommodate almost any vehicle. It’s also thicker and more durable than the other brands of seat protectors we have previously owned. If you love having a clean vehicle as much as you love your kids or pets, this is a product you absolutely need in your life. Trust me on this one!
CrystalT –
WORTH IT!
I have 2 kids who are both still in car seats. I was looking for a protective cover that was âcrash testedâ and came across this. I have had this for over a year now on my backseat and it has been awesome. It has protected my cloth seats from EVERYTHING. There are no dents from the car seats either. Most importantly it is very secure and car seats donât slip around on it. It is fairly easy to clean. The only thing that bothers me sometimes is in the middle, on the back rest part it protrudes a little but it is a big size and I have a Honda Civic. I was cleaning it today and thought I need to make a review for this because it has been amazing and I see myself using this for many years to come!
NoFunnyBusiness –
Fits Sienna 2024
This is a fairly thick seat cover. Very sturdy and stylish. Helps prevent wear and tear from small children and car seats.I have a 2024 Sienna and have this on the middle three seats. It fits well.
Jo M –
I would recommend it
Fit my company SUV perfectly but some of the mesh pockets are coming apart within a week. Took off a star for durability. I love diono products.
Amber –
I love it
I have this under both my kids’ car seats. I have a two year old, and am expecting baby #2 in 5 short weeks. It was incredibly easy to install this seat cover, and makes me feel much better about any potential snack spillage from my toddler, or spit ups I’m sure my newborn will have in the car.On that note, I wish I could tighten the straps that go around the head rest just a tiny bit more. It almost seems like the cover is slightly too large for my 2017 Honda CR-V, so the middle seat cover folds over itself a tiny bit, and I wish I could tighten the straps to do away with that. Regardless, I’m not trying to protect the back of the seats as much as the bottom, so I don’t mind the cover being slightly on the large size.Overall though, it had absolutely NO effect on securing the car seats to the car, which was the most important thing, so I’m very pleased with this purchase!
Jeremy May –
Great product.
This fits in my truck perfect. I have a full size 2022 GMC Sierra and it covered the entire back seat. It has plenty of zippers and spaces to allow all the buckles and what not to fit through. Very glad we paid a little extra for quality !!
Ty –
Durable and made of good quality
This is perfect for the back seat of my new car. I brought this so that the kids carseat wouldn’t ruin the fabric of my car.
Emily –
Not what I expected
Iâve waited to make this review hoping my opinion would change. The cover itself is great , good quality material . However this does not fit good in my opinion for my car like it said . No matter how we adjust the strap that goes around the head rest both of my kids struggle with buckling their seat belts . It blocks the buckle causing them to then have to stand back up while I pull the cover down for them so the cover does not cover the buckles again .
Amazon Customer –
I have a 2022 Subaru WRX compact car. I suppose it is considered a midsize car in todayâs market. I was hesitant to purchase this rear seat cover as it is marketed as size XXXL. What does that even mean? Is it only for Chevy Suburbans and Hummer H2âs? My bench seat measures 48â wide and the description of this item states it will cover up to 55â wide. Being that I couldnât find a Diono cover on Amazon that was XXL or XL, or L, or M, or S, I figured the 6â of extra width could be tucked in or could simply drape over the ends of the rear bench. Well, to my surprise this cover is literally the perfect size. I donât know how this would cover the seats in the back of a large body on frame SUV but itâs perfect for my WRX. Look at the pictures I attached. There is maybe at most an inch of overhang on each end. Unfortunately I didnât measure the cover before I installed it to see if the cover itself was 55â wide. The cover is thick and has padding in between the two outer surfaces. There are three pockets along the entire length of the front of the cover for storage. There is a zipper in the centre for 60-40 split benches or for a centre armrest. It appears to be very high quality and robust; like all Diono products. I will be purchasing another cover like this for my other vehicle.
GPB –
Har en kona electric och skyddet passade utmärkt på baksätet då vi har två barn i åldrarna 2 och 5år så blir det lätt smutsigt och skyddet täcker bra!
Andy Rowe –
This product is amazing , searched high and low for something to protect my new car back seats and after long time I found this, it’s great quality and definitely worth £50. Fits perfectly to my new ford Kuga. Would definitely advise buying one if you have kids that are younger to protect the apolestrey.
Steven lea –
Easy to fit and easily cleaned but just wish they were better fitted, the front covers get a crease down the centre of the seat pad part on mine anyway, doesnât effect the overall quality because I think they are great but just wish they were a little bit better fitted
ASDA88 –
Thick materials! Base is one piece, backing zips to allow sections to be folded down. Will help save the seat from car seat imprints, any spills and a million crumbs. Will be easy to clean. Seat belts lined up perfectly on 2016 Dodge RAM Rebel. Only complaint – wish it was 10â wider to completely cover the top of the seat.