The ultimate three-across, All-in-One car seat from birth to booster (4 to 120 lb.) provides the next generation in car seat safety. It features four stages of complete newborn protection and all-new Diono Safe+™ engineering.Why parents will love it: With five ways to travel, the 3QXT adapts as your child grows to offer a custom fit from birth up to 120 lb. It's designed with Safe+ protection to keep your child rear-facing for even longer. The style also folds nearly flat for travel and is FAA-certified so you can easily take it on trips.Why kids will love it: A memory foam cushion, expandable sides and seat bottom adjust for a perfectly comfortable ride and fit, plus the low-sitting profile makes it easy for kids to get in themselves when they're ready.Child weight/height: 4–50 lb. rear-facing with included infant insert; 22–65 lb. forward-facing with harness; 40–120 lb. forward-facing as booster.Car seat weight/dimensions: 25.8 lb.; 28" x 17" x 16" open.Safety features: Four stage complete newborn protection: Safe+ newborn travel high wedge, Safe+ newborn protection insert, Safe+ 2-in-1 infant positioning liner and Safe+ newborn harness pads to provide a custom fit from birth; Safe+ steel antirebound bar for increased stability and reduced rebound rotation by up to 50% to keep your child rear-facing up to 50 lb.; removable Safe+ side impact management pod with eight layers of interlocking energy-absorbing EPS/EPP foam, high density plastic and steel reinforcement for ultimate side impact protection; Safe+ steel core; Safe+ easy adjust 12-position headrest.Harness: Five shoulder and three buckle positions.Car installation: SuperLATCH system for easy installation.Stroller compatibility: N/A. Steel/plastic/aluminum/textile Removable fabric is machine washable Imported Kids' Wear