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.