How To Dress Baby In Winter Car Seat Keep your children snug and secure in colder weather. Parents and caregivers typically dress their children in winter coats. But it's important to know that heavy coats can interfere with the proper 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 Infant Car Seat Snow Suits Buckle Me Baby Baby Winter Car Seat Guide: Tips for Safe and Warm Car Rides Winter Coats and Car Seats: An Unsafe Mix FamilyEducation