Introducing the Nuna Cosmopolitan Demi Next Sibling Seat—perfect for growing families seeking adventure and practicality in their outings. Designed seamlessly to attach to your DEMI next stroller, this sibling seat mirrors the main seat's functionalities, offering roomy comfort, dual-facing options, and all-season adaptability. Engineered with safety and convenience in mind, it features MagneTech secure snap™ buckles for fuss-free in-and-outs and multiple recline positions adjusted single-handedly. A water-repellent UPF 50+ canopy and included rain cover ensure protection against all elements, while the Merino wool insert guarantees ultimate comfort. Ready to handle up to 50 lbs, it's the ideal choice for convenience, versatility, and nurturing your little ones’ journey from infancy.

From birth to 23 kg

Added extra seating option to your DEMI-next stroller

Forward and rear-facing seating options

Self-propelled MagneTech secure snap buckles™ automatically lock into place

Four reclining positions that are easily adjusted with just one hand

One-hand adjustable calf support and footrest to accommodate growth

Simple installation in the lower basket area without the need for adapters

Quick-release 3 to 5-point harness makes it easy to buckle them

up Water-repellent UPF 50+ Aire protective shield™ protects against the weather

Harness without retracting makes it easy to adjust for comfort and growth

Included rain cover for when the weather doesn't help

Integrated footrest on the seat for extra comfort

Rotating and removable armbar fits children of all sizes

Easily

removable merino wool insert provides ultra-soft comfort

Built-in privacy curtain and cabin ventilation panels for ideal airflow