The Diono Radian 3R is the original slim fit 3 across all-in-one car seat designed to protect from baby to booster seat (5 - 120 pounds). Lovingly engineered with the famous Diono steel-reinforced frame and now rear-facing for even longer expect 10 years of safety from just one car seat. Designed and engineered with complete rear-facing protection so you can keep them in a rear-facing convertible car seat for longer up to 50 pounds. Built with a mechanically engineered reinforced steel frame and made from automotive-grade high-strength steel the Radian is always ready to shield and protect. The Radian 3R also includes aluminum-reinforced sides and thick energy-absorbing foam which distributes crash forces for added protection. And when your family grows the slim-fit design will fit 3 across in most vehicles without compromising child safety or passenger comfort. ¯The Radian 3R features our SuperLATCH with Audible Click system which makes installation easy and super secure with an audible click that lets you know when connectors are locked in safe. Coming in a range of bold colors there is a Radian 3R that suits every child and for added parent convenience the Radian 3R cover is hard-wearing and easily removable. So when the next journey gets messy easily remove to machine wash. ¯As travel car seat experts Diono has built-in super portable and convenient features to the Radian 3R with original fold for easy transport and storage and easily removable machine washable covers. The Radian 3R is also conveniently aircraft-certified (FAA approved) so you can take safety with you wherever you go.