You have seen it in the news-remove the bulky coat before buckling up your child! This ensures a proper restraint no matter the weather and keeping your child confined beneath soft fluff that will cause that material to collapse on impact making too wide of a gap between child and harness. This causes their body to freely move forward resulting in serious injury to that child.
But it's cold? You want your children to stay warm! Here are some tips for you to read before that next errand out into the cold!
Important to note: Car seat manufacturers cannot determine if it is safe to use a thick winter coat because they do not crash test with coats on the test dummies. They do test for misuse and they can determine if a loose harness causes injury.