URPOWER Back Seat Extender for Dogs — Large Hard-Bottom Car Seat Cover, Waterproof & Stable

Take worry out of car rides with a seat cover engineered to create a flatter, wider space for your dog while protecting upholstery from dirt, claws, and spills. URPOWER’s large hard bottom extender blends rigid support with padded comfort, using three wide panels and a nine‑layer construction to reduce sagging and improve stability compared with small‑panel or hammock‑only designs.

How does the hard bottom design help on long drives?

The three large hard panels form a continuous, low‑sag surface that bridges the gap between seats and resists collapsing under weight. A high‑resilience foam layer on top cushions joints, so the platform feels less board‑like for older or larger dogs.

• Three full‑size hard bottom panels for broad, even support
• High‑resilience foam over panels for added comfort
• Supports up to 550 lbs to prevent sagging and slipping

Will this cover keep my car clean and dry?

Yes — the cover uses durable 900D Oxford fabric plus a dual PU+TPU waterproof barrier to block moisture, mud, and drool from reaching upholstery. Reinforced seams and edge piping reduce leak points and resist tearing from claws and frequent use.

• 100% waterproof dual barrier (PU + TPU)
• 900D wear‑resistant Oxford outer layer
• Reinforced seams and edge piping to limit leaks and wear

What safety and convenience features are included?

The cover includes a breathable mesh window so your pet can see forward, reducing separation anxiety, plus strong headrest straps and reinforced buckles to hold it in place. Non‑slip backing and a supplied dog seat belt add stability for pets and help keep the extender secure during braking or cornering.

• Mesh window for airflow and visibility
• Two storage pockets for leashes, treats, and waste bags
• Non‑slip backing, strong straps, and a dog seat belt included

Will it fit my vehicle and my dog?

Designed to fit many compact to full‑size sedans and SUVs, the extender measures 52" x 24.8" and increases usable back‑seat area by about 45%. Because vehicle interiors vary, measuring your rear seat area first ensures the best fit—especially in cars with captain chairs or oversized center consoles.

• Overall dimensions: 52" x 24.8"
• Best for medium to large breeds or multiple small dogs
• Check seat layout for captain chairs or narrow benches before buying

Who is this for: Pet owners who drive often with medium or large dogs and want a stable, waterproof surface that protects car seats while giving pets more room to sit, lie down, and travel comfortably. It’s well‑suited to families that take road trips, visit parks and beaches, or need a durable, easy‑clean solution for daily commutes and vet visits.