The Cruiser XL Car Seat Adapter quickly and intuitively fastens to the Cruiser’s 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. Cruiser can accommodate 1 infant car seat. (For 6mo+ twins, please consider the Toddler Comfort Seat.) Please visit Car Seat Compatibility List below for full details by brand.