The Graco Tranzitions 3-in-1 Harness Booster is designed to grow with your child and go with you, wherever your journeys take you—from car to carpool and beyond. This lightweight car seat transitions seamlessly from harness booster (26.5-65 lb) to highback booster (40-100 lb) to backless booster (40-100 lb) and features the Simply Safe Adjust Harness System, which adjusts your harness and headrest to 9 height positions, with no rethreading.

• 3-in-1 harness booster helps protect your child, from toddler to youth

• Grows with your child from forward-facing harness (26.5-65 lb) to highback booster (40-100 lb) to backless booster (40-100 lb)

• No-Rethread Simply Safe Adjust Harness System allows the headrest and harness to adjust together in one motion

• Lightweight, portable seat is ideal for busy, active parents

• One-hand, 9-position adjustable headrest grows with your child