This your yearly winter reminder that snowsuits or bulky items of clothing are a big NO NO in car seats. Always harness your baby in correctly and do the pinch test. Want to learn more? Your in the It's cozy season! Remember, when putting little ones in their car seat, it is not recommended to use big snowsuits or thick winter clothing as they can prevent the harness from being Car seat safety in winter [nb] : r BabyBumpsCanada How to keep a baby warm & SAFE in the car seat! The winter months can be tricky with figuring out how to dress baby. Whether you are concerned that baby is too cold outside or too hot with the heat on inside, here are three ways to make sure that How does everyone dress their babies during the winter months, that's car seat safe?