[Long-term Use] With strong buckle shoulder straps, the baby carrier backpack is adjustable to suit for the infants of 3 to 16 months under 15kg. [Ideal for Parents&Babies] Letting babies sleep better without making parents' arms tired or sore, convenient for mother breastfeeding and better to promote parent-child emotions. [Convenient and Portable] The soft and light weight infant carrier is foldable for easy storage and carry, ideal for going out with babies or toddlers. [Comfortable to Use] Made of soft and breathable fabric, and with ergonomic design and thickened shoulder straps make it comfortable to use for parents and babies. [3 in 1] This baby carrier supports three baby-carrying ways: front position facing in, front position facing out and back carrying.