Sixty seats were put to the test, which is nearly all of the models currently sold in the U.S. Out of the 60, only nine earned the "best bet" rating, including Britax Frontier, Clek Oobr, Combi Dakota blackless with clip, Cosco Juvenile Pronto, Eddie Bauer Auto Booster, Evenflo Big Kid Amp backless with clip, Maxi-Cosi Rodi XR, Recaro Vivo and Recaro Young Sport.
Six were rated "good bets" and 11 were "not recommended."
The ratings reflect which boosters were most likely to provide good lap- and shoulder-belt fit in a range of vehicles.
Children who have outgrown their child restraints, but are too small for safety belts, need a booster seat. Remember booster seats are required by law so don't leave home without it.
If you already have one of the boosters on the not recommended list, don't throw it away. According to the Insurance Institute, any booster seat is better than no booster at all. Take a look at the belt fit and if you're not happy with it replace the seat as soon as you can.