Uppababy Vista Lower Car Seat Adaptors These adaptors are ideal for travel and attach quickly and simply to your Uppababy Vista chassis, allowing you to use a variety of car seats as your pushchair seat unit. Compatible Car Seats Compatible with Maxi-Cosi Cabrio Fix, Pebble, and Pebble Plus, Rock; BeSafe iZi Go X1, and iZi Go Modular; Cybex Cloud Z i-SIZE, Aton M i-SIZE Car Seats. Features: Left and Right indicators to ensure proper installation Stroller folds with the adapters on Easy 30-second installation Fits all VISTA 2015 and later models