
The Doona car seat stroller is designed to be used from birth until your child reaches 35 pounds or 32 inches in height, whichever comes first. This typically covers the infant stage up to around 12-18 months for most children. Its unique dual functionality ends at this point, as it transitions from a 2-in-1 system to a standard car seat that can no longer be used as a stroller. The key to maximizing its use is understanding both the safety regulations and the practical aspects of your baby's growth.
The primary limiting factor is the height and weight limit set by the manufacturer to ensure safety in a vehicle. Once your child's head is less than an inch from the top of the car seat shell, they have outgrown it, regardless of weight. For stroller use, practicality often becomes the limiting factor before the official limits are reached. A tall or heavy toddler may find the compact stroller space uncomfortable for longer walks well before hitting the 35-pound mark.
It’s also crucial to note the expiration date, typically 6-8 years from the date of manufacture, which is stamped on the seat. This is a non-negotiable safety standard due to material degradation. Proper care, like avoiding harsh chemicals and storing it indoors, can help ensure it lasts through its usable lifespan.
| Growth Milestone / Factor | Doona Car Seat Stroller Limit | Typical Age Range | Notes |
|---|---|---|---|
| Maximum Weight | 35 lbs (approx. 16 kg) | Up to 12-18 months | Absolute limit for car seat safety. |
| Maximum Height | 32 inches (approx. 81 cm) | Up to 12-18 months | Child's head must be 1" below shell top. |
| Infant Insert | Required until 11 lbs (5 kg) | First 1-3 months | Provides necessary support for newborns. |
| Stroller Mode Use | Becomes impractical before limits | Varies by child size | Child's comfort is the main factor. |
| Product Expiration | 6-8 years from manufacture date | N/A | Check the label on the seat; safety critical. |


