This car seat and travel bag bundle offers a complete travel solution for families with young children. The Britax Poplar S convertible car seat accommodates children rear-facing up to 50 lbs with a slim 17-inch design made to fit 3-across in most vehicles. It features ClickTight technology for easy seat belt installation and a no-rethread harness with 14 positions to adjust the fit as your child grows. The car seat cover is machine washable and free of added flame retardants. Complementing the convertible car seat is the Britax car seat travel bag with built-in wheels, padded backpack straps, and multiple carry handles to transport your car seat through airports and more. This travel bag fits the Poplar S car seat as well as most other brands. It features a luggage ID tag, wide double zipper opening for easy access, and a storage pouch to protect shoulder straps when not in use. With its water resistant fabric and 17 x 15.5 x 31.5 inch size, this car seat travel bag ensures your child's car seat stays clean and undamaged no matter where your family adventures take you.