Why winter coats and car seats are a dangerous combination MSU Extension Bundle Up, Baby! A Guide to Safely Layering Up in the Car Keeping baby warm in the winter is essential. Use layers, instead of puffy material, to ensure your car seat harness has a snug fit. #TheRightSeat The Safer Way to Keep Baby Warm in a Car Seat this Winter Mommy's Bundle Infant Car Seat Snow Suits Buckle Me Baby Colder weather has arrived and it's important to make sure your little one stays safe and comfortable in the car. Tip: When dressing your baby for the car, avoid bulky