... Joy pack includes an ultra comfortable Carrier with a matched Infant Insert, and can be used from the first day you ... of 100% Cotton, the Original Bundle of Joy Carrier and Infant Insert are sturdily crafted - so you can carry your baby ... 4-5 months to maximum 45lbs / 20kgsWorks with Infant Insert? Yes.Accessory Compatibility: Infant Inserts, Backpacks, Front Pouches, Teething Pads, Weather ...