The Diono 3 Across All-In-One Convertible Car Seat is our best-selling and most loved car seat, now upgraded with 15 SafePlus features for enhanced safety and comfort. Designed to grow with your child, it offers 4 modes in 1 seat: rear-facing (4-50 lbs), forward-facing (22-65 lbs), and booster mode (40-120 lbs). Its slim-fit design allows for 3-across seating in most vehicles without compromising safety or comfort.

Built with reinforced automotive-grade high-strength steel, a steel anti-rebound bar, and 6-layer side impact protection, it provides ultimate protection on every road trip. The one-hand easy-adjust 12-position headrest ensures a perfect fit, while the foldable design makes it FAA-approved for airline travel and compact storage.