Our patented Tribeᵛ³ Add-On seat easily converts your double into a quad stroller. Easily add or remove the seat to your Twinᵛ³  base to meet your fam's needs! 

View our car seat compatibility chart to see which models are compatible with The Tribeᵛ³ Add-On Seat. 

NOTE: Not compatible with The Twinᵛ². See The Tribeᵛ² Add-On Seat.