Winter coats add bulk around your child and prevent a snug car seat harness. Harness straps must be in contact with your child, not a coat. Always strap, then wrap when harnessing Can Kids Wear Winter Coats in Car Seats? What Parents Need to Know Fearless Joy How to keep my baby warm and safe in the car seat Precious Cargo How to Style Tights with Skirts and Dresses for Winter Snag Snag US Car Seat Tips For Bad Weather Beat The Heat During The Cold! When to Wear Different Styles of Tights Merrick's Art