UPPAbaby adapters allow you to fit Maxi-Cosi®, Nuna®, Cybex, and BeSafe (BeSafe® not applicable in US/CA) infant car seats to the frame of your stroller. This convenient adapter will take baby straight from the car to the car to the road! The updated design allows your child to be closer to you in single mode and enables more space in double mode without the use of additional VISTA upper adapters.