The perfect accessory for growing families, the Nuna DEMI next Sibling Seat allows you to easily transform your single Nuna DEMI next stroller (sold separately) into a double stroller without compromising style or functionality. Crafted from premium materials, this sleek black add-on seat has an easy-to-use harness system that keeps little ones securely fastened with a self-guiding magnetic buckle. The rugged, all-season seat features a one-hand, 4-position recline plus adjustable calf support to keep kids comfortable. A removable zip-to-extend protective UPF 50+ canopy shields riders from sun and wind, while the Sky drape mesh canopy cover offers added protection from the elements. Suitable for babies and big kids alike, this seat's simple and innovative design makes it easy to stroll as a traveling twosome.Suitable from birth to 50 lbs., up to 45". Includes sibling seat only. Polyester, metal, plastic and merino wool. Connects easily to the DEMI next stroller frame (sold separately) in the top or lower position and becomes a duplicate of the main seat. Simple install in lower basket area with no adapters needed. Forward and rear-facing seat options. 4 recline positions adjust with just one hand. Quick-release 3- to 5-point harness makes it easy to fasten little ones in. No-rethread harness makes it easy to adjust for comfort and growth. Self-guiding MagneTech secure snap buckles automatically lock into place. All-season seat keeps baby cozy in winter and converts to mesh in summer. One-hand adjustable calf support and footrest to accommodate growth. Water-repellent UPF 50+ Aire protect canopy protects from the elements. Built-in privacy drape and ventilation panels in the canopy for ideal airflow. Rotating and removable armbar fits kids of all sizes. Removable merino wool insert provides ultra-soft comfort. Rain cover included. Imported.