This is the ONE KAI Air series, made with breathable mesh material. This baby carrier can be used for a long time, from newborns to 3 years old. (Weight 3.5kg - 15kg, Height 53cm~) It can be used in 4 ways: facing-in carry (high position), facing-in carry (low position), facing-out carry, and back carry. ● Purchased in 2021. Used for two children. There is some wear and tear, and some yellowing due to the baby inevitably licking around the face area. It may be improved with a cover, etc. ● The box and instruction manual are included and will be shipped together. - Model Name: ONE KAI Air - Color: Gray - Material: Mesh Thank you for looking.