BabyBjorn ONE KAI Air Baby Carrier A baby carrier with breathable mesh material, adjustable straps, and a safety belt. The BabyBjorn Baby Carrier "One Kai Air" is an evolved version of the popular One+Air. Breathability is improved with new mesh, and the fit is also improved with a new round design! A new adjustment belt has been added to the head support, making it even more comfortable and convenient. This 4-way baby carrier allows for newborn carrying, facing-in carrying, facing-out carrying, and back carrying. The One Kai, designed to fit the Japanese physique, can be used for a long time, from newborns to 3-year-olds (3.5kg to 15kg). Size (approx.): Belt width 6cm * Hip size 67-160cm Weight (approx.): 1kg Material: Body: 100% polyester Leg zipper cover: 100% cotton Target age: 0 months to approximately 36 months (height 53cm-100cm / weight 3.5kg-15kg) - Facing-in carrying (before neck support): 0 months (3.5kg 53cm) to approximately 4 months - Facing-in carrying (after neck support): Approximately 4 months to approximately 24 months (13kg) - Facing-out carrying: 5 months to approximately 18 months (12kg) - Back carrying: 12 months to approximately 36 months (15kg 100cm) * Please use back carrying only after 12 months. - Brand: BabyBjorn - Color: Black - Material: Mesh - Adjustable straps: Yes - Safety belt: With red buckle Thank you for viewing. Newborn Baby 0 months 3 years Baby Carrier Mesh Facing-out carrying Back carrying