Use the MyCarrier Back Carrier with your Stokke MyCarrier Front Carrier once your little one can sit unassisted. This carrier grows with your child from 9 months on, allowing them a little more independence while offering the same comfort and support. Enjoy ergonomic carrying comfort with the MyCarrier Back Carrier from Stokke, which allows you to carry your little one on your back once they can sit unassisted For children 9 months to 36 months 1 carrying position Use with the Stokke MyCarrier Front Carrier For children who can sit unassisted Padded/adjustable head support Wide cushioned shoulder straps 100% cotton Machine washable Measures 16" L x 4" W x 22" H 3 year manufacturer's warranty Imported Model Number 451606 SKU # 61870499