Perego replacement seat cushion will fit the following models with the passive restraint bar (straddle bar) between the childs legs:
The upholstery has cutouts for upper shoulder straps but can be used for chairs with no shoulder straps. However, please be aware that there will be slits in the backrest of the upholstery with no belts filling them.
NOTE: The older the chair, the looser the cushion will fit due to changes in the seating area over the years. Newer models have a larger seating area with a higher backrest.