Ready to go with room to grow! The Poplar convertible car seat takes the stress out of moving to the next car seat stage thanks to the patented ClickTight installation and slim SpaceSaver design. This convertible car seat accommodates up to 50 lbs when installed rear-facing and easily switches to a forward-facing car seat as your child grows. ClickTight technology provides fully open seat belt paths that are clearly labeled and easy to access, and the automatic tensioner takes care of the tightening. This car seat lets you easily adjust the 14-position no-rethread harness and headrest to help create the perfect fit. The removable infant insert helps to properly position infants 22 lbs and under. There are 2 additional premium inserts that help create refined comfort and a tailored fit. The ReboundReduce stability bar easily attaches to the car seat when installed rear-facing, helping to minimize movement in the event of a crash. Slim outside and spacious inside, this convertible car seat features 17-inch SpaceSaver technology designed to fit 3-across* without compromising on trusted Britax safety and premium comfort. The rear-facing car seat includes a patented SafeCell crumple zone and a V-shaped top tether to help manage crash energy. Carbon steel frame and belt paths provide strength and stability. The car seat cover fabrics are naturally flame-retardant with no added FR chemicals, and they're safe to machine wash and dry time and again. *Britax cannot guarantee 3-across installation fitment in all vehicles Features: Convertible Design: Works as a rear-facing car seat with the infant insert and converts to a forward-facing car seat as your child grows ; ClickTight Installation: With ClickTight, you know it's right in just 3 easy steps: open, thread and buckle, click it closed ; ReboundReduce Stability Bar: Carbon steel bar easily attaches to the car seat when installed rear-facing to minimize the movement in the event of a crash; must be removed when installed forward-facing ; SpaceSaver Design: 17-inch seat is designed to fit 3-across without compromising on trusted Britax safety and premium comfort. *Britax cannot guarantee 3-across installation fitment in all vehicles ; Infant Insert: Specifically helps to properly position newborns 22 lbs and under ; 5-Point Safety Harness: Helps evenly distribute crash energy to keep your child safe ; Patented V-Shaped Top Tether: Has 2 connection points to help slow and reduce forward movement in a crash; easily stores away when not in use ; Easy-Read Level Indicators: The 6-position and quick-adjust recline helps you find the most comfortable fit for your child and the best fit for your vehicle ; Naturally Flame-Retardant Fabrics: With no added FR chemicals ; SafeCell Technology: Acts as a crumple zone, helping to keep crash energy away from your child ; Easy-Adjust Harness: The 14-position no-rethread harness and headrest move to help create the perfect fit ; Carbon Steel Frame: Reinforces the seat structure to help keep it sturdy and stabilized ; Flip-Forward Buckle Pad: Stays out of the way for easy boarding ; Washer and Dryer-Friendly: No more hand-washing or waiting for the cover to air-dry; just quick and easy cleanup, so you can keep moving ; Dishwasher-Safe Cup Holders: The 2 cup holders slide in and out for easy cleaning between rides;.