About The Safety 1st All-in-One is part of the Car Seats test program at Consumer Reports. In our lab tests, Harnessed Car Seats models like the All-in-One are rated on multiple criteria ...

The lap belt should lay along the upper thighs, across the sturdier hip bones. As a backless booster, the Safety 1st Boost n’ Go is only appropriate for use with children at least 4 years of age ...