The Britax car seat bundle includes the One4Life all-in-one convertible car seat and the Poplar S slim convertible car seat. The One4Life car seat transitions through 10 years of use from a rear-facing infant seat up to 120 pounds to a high back booster. It features ClickTight installation, a steel frame, SafeCell impact protection, and a no-rethread harness with 15 positions. The lightweight Poplar S accommodates children rear-facing up to 50 pounds and forward-facing up to 65 pounds in a space-saving 17-inch design made to fit 3 car seats across. It also utilizes Britax's ClickTight installation and no-rethread 14-position harness for easy adjustability between children. Both car seats have plush quilted padding for comfort and cool, breathable fabric that draws moisture away. Each seat has a machine-washable cover, dishwasher-safe cup holders, and a steel-reinforced frame for safety. With stages from infancy through elementary school, the convertible seats in this bundle complement each other to cover every phase of childhood in the car.