A stroller for a young child comprising a frame mounted on a plurality of wheels and a seat mounted in the frame. The seat is adjustable between a first position where the child is retained in a reclined or semi-reclined orientation, and a second position where the child is retained in an orientation that permits them to sit and stand. The seat includes a bottom that is pivotally attached to a back. A sling member is secured between the frame and back such that when the bottom is pivoted out of the way, the sling supports the child in the seated or standing position.