The optional Lower Maxi Cosi™/Cybex™ car seat adapter makes it easy to latch in a Maxi Cosi Mico, Maxi Cosi Mico AP, Maxi Cosi Prezi, Cybex Aton or Cybex Aton 2 car seat to your Bumbleride Indie Twin. Dual compatibility options ( **must be two of the same to fit, requires Upper and Lower adapters**): Maxi Cosi Mico, Maxi Cosi Mico AP, Maxi Cosi Prezi, Cybex Aton or Cybex Aton 2. (Not compatible with 2016+ Indie Twin).