Ready to go with room to grow! The Britax® Poplar® S convertible car seat takes the stress out of moving to the next car seat stage thanks to ClickTight® installation and the slim, 17” SpaceSaver™ design. This infant and toddler car seat accommodates up to 50 lbs when installed rear facing, allowing your child to ride rear facing longer. It easily switches to a forward facing car seat when your child is ready, accommodating up to 65 lbs. ClickTight technology helps you install with confidence, every time. Just open, thread & buckle, and click it closed. With a slim outside and spacious inside, this convertible car seat is designed to fit 3 across* without compromising trusted Britax safety and premium comfort. The ReboundReduce™ stability bar easily attaches to the car seat when installed rear facing, helping to minimize movement in the event of a crash. This slim car seat includes SafeCell® technology, a V-shaped top tether, a high-strength steel frame, and two layers of energy management. The two premium infant inserts help provide a custom fit for newborns, and the SafeWash® cover is safe to machine wash and dry with no added FR chemicals. The 14-position, no-rethread harness and headrest adjust together easily with one hand, helping you find the right fit for your growing child. *Britax cannot guarantee 3-across installation fitment in all vehicles.