The Joolz Hub Cocoon Gorgeous Grey is ergonomically designed to embrace your precious little one for optimum comfort. It can be used from birth up to 18 months. The cocoon uses a lie-flat position to provide extra support for baby. Once your baby is strong enough to sit up and can be changed into a sitting position. The front of the cocoon allows a flow of fresh air to control your baby's temperature naturally even on those warm summery days. Features: Compatible with the Joolz Hub stroller Suitable for children from birth to 18 months Joolz Hub Stroller can be folded with cocoon attached Ventilation at the foot of the cocoon to naturally control your baby?s temperature Can be used in lie flat or seated positions