BabyBjorn's popular ONE+ model. Made entirely of mesh material for excellent breathability, keeping you cool and comfortable even in summer. A 4-WAY type that can be used from newborns to around 3 years old (facing-in carry / facing-out carry / back carry / newborn carry). The shoulder and waist belts are secure, making long hours of carrying comfortable. No newborn insert needed, this one is all you need. Lightweight and easy to handle, and machine washable. The design is a simple gray, a popular color for both boys and girls. [Age Range] Newborn to approximately 3 years old (3.5-15kg) [Carry Positions] Facing-in carry / Facing-out carry / Back carry / Newborn carry [Material] 100% polyester (mesh) BabyBjorn One Plus Air, ONE+Air, baby carrier, mesh, all season, for summer, newborn OK, breathable, popular color, gray, baby carrier, BabyBjorn ONE, BabyBjorn Air This is a used item, and is inspected by an amateur, so there is a possibility of oversight. Please refrain from purchasing if you are sensitive to such issues!