Veer's infant car seat adapters for major brands of infant car seats quickly and intuitively fasten to the Cruiser XL frame, enabling your infant to live the Veer experience. You can place your car seat in any of four positions: facing you or facing the outside world, and above the front or back seat of Cruiser XL.Cruiser XL can accommodate 1 infant car seat. (For 6mo+ twins, please consider the Toddler Comfort Seat.)Compatible Infant Car seats:Primo Viaggio 4-35Primo Viaggio 4-35 Nido