Ineffable Adjustable 4 Positions Carrier 3D Backpack. Feature: 4 carrying position modes: Chest way, kangaroo style, back carry, cross arm carry durable material, safe and exquisite design Adjustable shoulder belt, double-protection safety buckle, 3D ventilating back pad Adjustable durable waistbelt for safer carrying Easy to operate and adjust it, flexible carrying position Suitable for carrying 0-30 months old baby kid. Specifications: Weight-load: Maximum 18kg Baby age: 0-30 months Product weight: 500g Material: Polyester & Cotton. Operation tips: 1. When you apply the carrier by yourself, please make sure the carrier is safe, adjust the belt length, fasten the lock, and push out the carrier from both sides by grasping it with both hands. After you ensure that it fastens completely, carry the baby with both hands and place its legs first from upwards into the carrier. Carry the baby at the status of sitting. 2. If there is anybody to help you, so please place the baby in it first and then carry it. Ask somebody to help you to fasten the lock behind. Anyway, you cannot lose your bands until you are sure that the lock is fastened. 3. It is better to use it about 30 minutes after suckling to comfort the baby. 4. Never cleanse it with bleacher and strong washing powder to avoid baby hypersensitivity. Package: 1 x Ineffable Baby Carrier Newborn Infant Backpack .