4Knines Hard Bottom Extender Car Seat Cover for Dogs - Regular
4Knines Hard Bottom Extender Car Seat Cover for Dogs - Regular
Shipping calculated at checkout
Couldn't load pickup availability
Genuine 4Knines, available at T-Top Vibes
More adventures. Less mess.
For the muddy walks, park trips and everyday rides with your dog. Get authentic 4Knines gear with personal help choosing the right setup for your vehicle.
Authentic 4Knines
Genuine manufacturer products from our 4Knines supplier partnership.
Help before you order
Ask us to compare measurements, attachment points and your vehicle layout.
Help after you order
Contact T-Top Vibes for order questions and return support.
Measure first. Order with confidence.
Find the right fit for your vehicle.
Compare your vehicle layout with the product measurements.Check the product diagrams and attachment points before ordering.
Compare the diagram with your vehicle’s actual measurements and seat configuration. A vehicle name alone does not guarantee fit.
Fit and installation resources
Use the manufacturer’s guides or contact us for instructions for your exact model.
PDFs and the manufacturer’s fit guide open in a new tab, keeping this product page available.
Clear answers before checkout.
Shipping costs and timing
Shipping rates are calculated at checkout for your order and destination.
Need it for a specific trip? Ask us about current shipping expectations before ordering.
30-day returns with no label or restocking fee
Eligible 4Knines items have a 30-day return window, with no return-label fee and no restocking fee.
Contact T-Top Vibes with your order number before sending anything back. We’ll arrange the return and provide the next steps.
Get help with a return →Manufacturer warranty
Contact us about the manufacturer warranty terms that apply to this particular item. Keep your proof of purchase and follow the product’s installation and care instructions.
Ask about warranty coverage →A few things worth knowing.
How do I clean it?
Vacuum loose hair and wipe small messes with a moist towel. Follow the linked installation and care guide for rinsing and drying. Use the instructions for your exact model rather than assuming every 4Knines product has the same care requirements.
Is it chew-proof?
These covers are not chew-proof and are not recommended for aggressively destructive dogs. Supervise your dog and never leave a pet unattended in a vehicle.
Does a cover replace a pet restraint?
No. A seat cover or hammock protects the interior; it is not a crash-tested dog restraint. Use an appropriate restraint or secured carrier according to its instructions and your vehicle’s guidance.
About the manufacturer
4Knines’ “Trusted By” recognition
Brand recognition displayed by 4Knines, the maker of this product.
Protect the doors, too.
Door guards cover the panels your seat or floor cover leaves exposed. Each set includes two guards. Check your door measurements and window compatibility first.
See the complete 4Knines collection →
A real person behind your order
I’m Matt. Glad you’re here.
I’m an Air Force veteran, husband and dad building T-Top Vibes here in Utah. I care about the products I carry and the people who buy them.
If you’re comparing covers or need help with an order, reach out. You can email me directly, and I’ll help you get the answers you need.
Ready for your next ride together?
EXTRA DURABLE SUPPORT: The 4Knines hard bottom car seat cover extends your rear bench seat into a stable platform for dogs of all sizes. Reinforced panels provide exceptional support, creating a sturdy, non-collapsing surface for a safer, more comfortable ride.
PERFECT FIT FOR ANY ADVENTURE: Regular Size fits most vehicle models and includes Velcro openings for easy access to seat belt receptacles. See how easy it is to install. **NOT recommended for use with captain chairs - this cover is not designed to bridge the gap between seats without support for the middle panel.
BUILT-IN DOOR PROTECTION WITH EZ OPEN DESIGN: Keep your car's interior in top shape with integrated door panel coverage, preventing scratches, dirt, and slobber while allowing dogs to enjoy open windows without damage. Our EZ Open Door Panel Protection (Patent-Pending Design) features a one-zip system for effortless in-and-out access for your pup.
K9-SHIELD® WATERPROOF, NON-SLIP LAYER- Special non-quilted waterproof layer makes the seat bottom completely waterproof (seams and zippers are not watertight). The non-slip backing and anchors keep the cover in place.
EASY TO CLEAN - Hose it down, wipe it with a moist towel, or toss it in the washer to keep it looking fresh and clean. The cover is machine washable on the gentle cycle after removing the rigid panels and side panels.
BUILT TO OUTLAST AND OUTPERFORM - 4Knines products are known for durability and craftsmanship. *Do not use when heated seats are activated.* **Not recommended for aggressively destructive dogs, i.e., this is not chew proof. Please do not leave your pet in your vehicle unsupervised**
4Knines is committed to giving back to the animal community.
We donate a percentage of each sale to animal advocacy groups.
IMPORTANT SAFETY NOTE: The hard bottom seat extender creates a high jump for your dog when getting in and out of your vehicle. Depending on your dog's size, health, and agility, they may need assistance to safely enter and exit.
