Piggyback Rider - Standing Child Carrier Basic Model (Black) It functions like a backpack, utilizing a shoulder-mounted foot-bar to distribute the child's weight (up to 60 lbs.) at your core, which enables a natural upright walking posture. The child is secured by a safety harness that tethers to attachment loops on the shoulders of the Piggyback Rider kid carrier. The Piggyback Rider kid carrier is a mutually enjoyable, effortless way to carry a child (2 and half+ years) on your back, replacing bulky backpack carriers and strollers. Practice using the Piggyback Rider kid carrier with and without a child before using for extended periods of time. Contact Piggyback Rider with any issues/questions.