The Sit down N Stand Ultra baby stroller offers multiple riding positions, allowing kids to sit or stand together the trip, or use an infant baby car seat in both the front and rear facing seats. The Sit N Remain Extremely baby stroller can accept one or two infant baby car seats, (sold separately) all Infant Trend baby baby car seats, and select designs from other brands to create a baby travel system. Make sure you refer to our baby car seat compatibility chart for more information: http://www.babytrend.com/faqs_carseatcompatibility.html.Folds compactly for easy storage space and journey, big storage basket, and offers a foot activated brake. The unique rear facing seat allows your older child, (up to fifty lbs.) to ride or they may effortlessly forward face to stand on the sturdy stand on platform. The child holder conveniently may swing away allowing even older children easy access to the front seat, the parent tray offers covered storage space with cupholders, with a 2nd child cupholder for your older standing or rear facing child.