Not all booster seats are created equal, according to Insurance Institute for Highway Safety evaluations. This year, IIHS tested 31 new booster seat models and found that just 19 qualified as a Best Bet, the top rating; one booster received the Good Fit score and 11 fell into the Check Fit, meaning the booster offers good fit for some kids, but not all.
"Parents should have an easy time finding a top-rated booster seat since there are more this year than ever before," Anne McCartt, IIHS senior vice president for research, said in a statement. "At the same time, consumers should continue to consult our ratings before buying because name brand, price and style don't always equate with proper lap and shoulder belt fit."
Booster seats are for kids, ages 4 and older, who no longer fit in a forward-facing child-safety seat. Seat belts are made for adults, so a booster raises up children, allowing the seat belt to be positioned across their chests and laps.