Infantino Side Rider Baby Carrier I is designed for babies weighing 14-36 lbs (6.36-16.36 kgs). It features a safety harness system, comfortable padded hip support, and a cushioned lumbar support to prevent back strain. The carrier has a unique shoulder strap system called the Set&Forget™ that allows for easy adjustment. It also includes a handy pocket for keys, wallet, and more. Remember to frequently check that your baby's head and body are in an upright position and their chin is not pointing down toward their chest. Never leave your baby unattended while using the carrier.