【High-Grade Velvet Fabric】- Baby backpack carrier is made of high-grade velvet fabric. It is comfortable, breathable, skin-friendly, durable and suitable for all seasons. Protects baby's delicate skin from harm and brings baby the most gentle care. 【Suitable for babies weighing 7-35 lbs】- The baby carrier is suitable for newborns up to two years old (3.2kg/7lbs – 15.9kg/35lbs). Waistline Recommendation (with Clothes) for carrier: up to 54 in. 【Ergonomic Natural "M" Shape Design】- The bottom of the baby carrier can be adjusted to the size of your child's hips by adjusting the Velcro, catering to your child's growth at every stage for 7-35lbs. Achieve a safe fit and Ergonomic natural "M" position, regardless of your baby's size that ensures baby's healthy hip and spinal development. 【X-shaped Back Design】- Unlike conventional H-shaped carriers, the Baby Carrier employs a revolutionary X-shaped back design. This forward-looking feature distributes weight better and evenly for unrivaled comfort for both you and your little one. ·NEST BLANCHE· Baby Carrier for Newborn to Toddler, Ergonomic Backpack Design, Front and Back Facing Options, Black