Hard-Bottom Dog Back Seat Extender with 550 lb Support, Waterproof 900D Oxford Cover and Mesh Window

A hard-bottom dog back seat extender uses three large reinforced panels to bridge the rear footwell and provide a flatter platform for one large dog or multiple pets. The structure supports up to 550 pounds, while high-resilience foam softens the feel of the rigid base for longer drives, camping trips, park visits, and veterinary appointments.

Nine-layer construction combines wear-resistant 900D Oxford fabric with dual PU and TPU waterproof barriers to block muddy paws, spills, drool, hair, and scratches. A mesh window supports airflow and keeps the front seats visible, while two pockets organize leashes, treats, toys, and waste bags. The included pet seat belt, nonslip backing, headrest straps, and reinforced buckles help keep the setup positioned. Choose S, M, L, or XL by vehicle layout and measure before ordering.

Specifications

• Brand: URPOWER
• Product: Hard-bottom dog back seat extender and cover
• Support claim: Up to 550 pounds
• Hard structure: Three large reinforced panels
• Padding: High-resilience foam
• Construction: Nine layers
• Outer fabric: Wear-resistant 900D Oxford
• Waterproof barriers: PU and TPU
• Surface: Nonslip backing
• Window: Breathable mesh panel
• Storage: Two large pockets
• Anchoring: Headrest straps and reinforced buckles
• Included components: One dog car seat cover and one dog seat belt
• Medium size: Approximately 52 x 24.8 inches
• Fit options: S for selected Tesla Model Y, M for cars and full-size SUVs, L for extended or double-cab trucks, XL for full-size crew cab trucks
• Colors and finishes: Multiple Black, Grey, Khaki, Tan, and two-tone options
• Model: SC-1019
• Manufacturer part: SC-019