The Baby Jogger City Select Travel System pairs the City Select stroller with the City GO infant car seat, so your stroller is ready to grow with you from day one! Designed to keep your family rolling, the City Select converts from a single to double stroller. With over 16 configurations you can customize your stroller to fit your needs perfectly. Now with included City GO, the City Select is the only stroller you'll ever need. City GO can be easily and securely installed with or without the base, so you can easily go from taxi to car to stroller.