The Ultimate Car Seat/Booster Seat Carrier allows families to protect their childs car seat when traveling. The Carrier features thick padding at key locations and a custom fit to ensure protection of car seats safety features. Convenient carry handle and padded backpack straps offer comfortable carrying choices for luggage-burdened parents. Includes ID card and pocket. Fits Britax Marathon and Britax Boulevard and most popular car seat styles. Available in black.