The purpose of a belt-positioning booster is to lift a child up so that they fit properly in an adult seat belt. Highback boosters resemble harnessed carseats in that most are pretty enveloping and feel secure around the child. Backless boosters are basic boosters that are highly portable and generally not seen from outside the vehicle. Is one safer than another?
Highback Booster or Backless Booster: Which Is Safer?
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