High-back boosters have a higher shoulder belt guide when compared to low-back boosters because it helps position the lap portion of the safety belt lower on your child's hips, not their stomach. High-back boosters also make sure that all belts are properly positioned across your child’s chest and pelvis when they sit in them! This will help keep children safe when involved in car accidents where vehicles roll over or get hit by other cars! A good forward facing car seat has many benefits when it comes to protecting kids during accident situations like these!