The original All-in-One convertible car seat designed to fit 3 across and with our famous steel core inside for optimum safety. Now rear facing for even longer (up to 50 lb/ 22.7 kg) and suitable from birth up to 120 lb/ 54 kg, expect 10 years of safety from just one car seat. Features: -With 4 ways to travel from birth to booster, the radian® 3R adapts as your child grows to offer a custom fit from birth up to 54 kg / 120 lb -Built with the famous radian® slim fit design, to fit 3 across in most vehicles without compromising child or passenger comfort -Designed and engineered to keep your child rear-facing even longer up to 22.7 kg / 50 lb (approx 4 years old) -Mechanically engineered, reinforced steel core, made from automotive grade high strength steel to shield and protect. -Radian 3R features easy remove covers. So when the next journey gets messy, quickly remove the covers to machine wash and dry. -10 years one car seat -With extended rear-facing from birth up to 22.7 kg / 50 lb to keep your child in the safest travel position for as long as possible -SuperLATCH™ system makes installation easy and super secure. An audible click lets you know when connectors are locked in and safe -Super portable and fold flat for easy travel. They are also FAA Approved and certified for use on aircraft! -Memory foam harness pads with anti-slip backing for added safety and comfort -The radian® 3R features memory foam padding in the seat base for optimum child comfort. Rear-facing: 2.3-22.7 kg / 5-50 lbs Forward-facing: 10-29.5 kg / 22-65 lbs Booster mode: 18-54 kg / 40-120 lbs