The carrier is suitable for babies and toddlers weighing 5.5-15 kg, and can be used as a back carrier. Also with insert for newborn babies weighing 3.2-5.5 kg (7-12 lbs), sold separately. NEW - The waistbelt with lumbar support can be worn a little higher or lower to support the lower back and provide optimal comfort, and has adjustable padded shoulder straps. The carrier is suitable for men and women. Maximum baby comfort - Breathable 3D air mesh material provides an optimal temperature for your baby on warm days. The structured bucket seat supports the correct frog-leg position for the baby. The carrier also has a neck support and privacy hood with 50+ UV sun protection. Extendable back panel adjusts to the growing baby. The carrier is suitable for toddlers up to 3 years / 15kg. The breathable carrier in carbon grey with adjustable waistbelt, adjustable moulded shoulder straps, machine washable. The Ergobaby Four Position 360 Carrier Performance Cool Air in Carbon Grey allows parents to wear the carrier in four different positions.A great feature on this carrier is the cool, breathable 3D air mesh panel which keeps your baby cooler for longer.