What protection should I use under the car seat in my vehicle?
Place a car seat mat, towel, or thin blanket under and behind the car seat to protect the vehicle seat. This prevents damage to your vehicle's upholstery from the car seat installation.
From the official Graco 4Ever DLX 4-in-1 Car Seat manual, page 2
Have a follow-up question?
Answers from the official manual.
Common questions