This carrier is suitable for children who are 5 months or older only, so if you need something for a younger child then you will want to look elsewhere. (strollerlab.net)
It is also nice if the jogging stroller is suitable for children from birth or accepts an infant car seat adapter so you could turn it into a travel system. (babieslounge.com)
This best seller is suitable for children ages 3 through 8. (thetoddle.com)