The optional Peg Perego car seat adapter makes it easy to latch in a Peg Perego Primo Viaggio 4-35 NIDO or 4-35 car seat to your 2016 - 2019 Bumbleride Era, Indie or Speed stroller. Seat fabric removal is not required for use, just an option. This adapter is not compatible with 2015 or prior models or Indie Twin. Not compatible with Indie Twin.