Transform your J is for Jeep Brand Jogger into the perfect travel stroller with the J is for Jeep Brand Jogger Car Seat Adapter for Chicco Key fit 30 Car Seats. This accessory allows you to easily attach Chicco Key fit 30 Car Seats (sold separately) to the J is for Jeep Brand Jogger (sold separately). Designed for fast and easy installation this adapter simply clicks into the car seat s existing child tray and allows you to keep your baby facing you as you walk or jog. About J is for Jeep Brands: Since 1941 the Jeep brand has been a symbol of freedom and expression. Influenced by a love of the great outdoors. J is for Jeep Brand products are created for life s little adventurers.