SWADDYL Car Seat Blankets for Babies Winter Baby Car Seat Cover Stroller Footmuff Bunting Bag I Newborn Baby Car Seat Swaddle Blanket for Infants 30x30 I Cotton I Baby Newborn What's the Deal with Winter Coats in Car Seats? Winter Coats in Car Seats Are Dangerous. So, How Can You Keep Your Child Warm This Winter? 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 It Will Do In A Pinch: Why Not To Wear Coats In a Car Seat