CYBEX SOLUTION Z-FIXThe CYBEX Solution Z Fix high back booster seat is designed to grow with your child, adapting to their changing needs. This seat boasts standard safety features by offering a patented, reclining headrest that prevents the tipping forward of the head during sleep, and an optimized Linear Side impact Protection system to ensure the highest level of safety and comfort for your child. Patented reclining headrest prevents the child's head from falling