The Mountain Buggy nest™ R129 i-Size Infant Car Seat with Rotating Base is built to make those first journeys feel calmer and more secure. With i-Size protection, rear-facing use from 40-87cm and a 180° rotating ISOFIX base, it helps you get baby in and out of the car with far less lifting and fumbling.
That matters most when your baby is asleep, your hands are full, or you’re making several short trips in a day. The included base, clear installation indicators and one-hand release all work together to make every transfer feel more controlled, while the travel system compatibility gives you an easy move from car to buggy without disturbing your little one.
180° rotating base for easier loading and unloading
The included ISOFIX base rotates towards you, so you can position your baby more naturally before lifting them in or out. This helps reduce awkward twisting at the car door and makes harness checks easier to carry out properly.
Extended rear-facing use for added reassurance
Suitable for rear-facing use from 40-87cm, nest™ gives you the reassurance of keeping your baby rear-facing for longer. For everyday use, that means a car seat that supports safer travel through the earliest months without forcing an early move to the next stage.
Lightweight shell and one-hand release for smoother transitions
At just 4.2kg with the newborn liner, the seat is easier to carry between the car and your pushchair. The one-hand release from the base also helps you move quickly while keeping your baby settled, which is especially useful on busy days.
Adjustable fit that keeps pace with your baby
With 8 headrest heights and a simultaneous head-and-harness adjuster, the seat can be adapted as your baby grows without re-threading. That saves time and helps you achieve a more secure, better-fitted setup as their shape changes.
Features
- i-Size and R129 safety standard for trusted compliance and peace of mind
- ISOFIX base included for a secure and intuitive installation
- 180° rotation on the base for easier access when placing baby in the seat
- Green/red indicators and clear seat-to-base alignment markers for confident fitting
- Vehicle seat belt installation option for cars without ISOFIX anchor points
- Thick EPP foam within the shell for added protection
- 8 headrest heights with simultaneous head and harness adjustment for a more tailored fit
- Removable newborn liner and detachable head rest for a more comfortable start from 40-60cm
- Extendable sun canopy with UPF50+ blackout cover included for added privacy
- Travel system compatible with Mountain Buggy® pushchairs for easier movement between car and buggy
Specifications
- Child height: 40-87cm
- Product weight: 3.9kg
- ISOFIX base weight: 5.4kg
- Total bundle weight: 9.6kg
- Dimensions (H x W x L): 46 x 44 x 68cm (car seat on base)
- Seat load: <13kg
- Rear-facing installation only
- Installation method: ISOFIX base installation or car seat alone using vehicle seat belt
- Newborn insert: Yes, for infants 40-60cm
- ISOFIX base leg length: 28-53cm
- Seat width: 17-29cm
- Safety certification: R129 with i-Size
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