One 3
The only Plus Test certified ISOFIX seat on the market allowing rear-facing travel up to 7 years of age (61-125cm/23kg). Secure installation in less than 30 seconds. Adjustable legroom after installation up to 30cm.
- SAFETY
- LONGEVITY
- HANDLING
- INSTALLATION
- DESIGN
- COMFORT
Award-winning excellence
The One 3 platform has consistently been recognised for its top-tier safety, including approval from the prestigious ADAC safety test and the rigorous Plustest, the two toughest collision tests in the world.
Useful information
| Width | 44 cm |
| Height: | 54 cm |
| Depth: | 76 cm |
| Adaptable front brace feature position | Yes |
| Seating depth | 32 cm |
| Seating to buckle | 18 cm |
| Support leg max. | 52 cm |
| Support leg min. | 26 cm |
| Adjustable support leg positions | x 14 |
| Weight: | 10 kg |
| Approved age: | 0-7 years |
| Approved weight: | 0-23 kg |
| Approved length: | 61-125 cm |
| Attachment: | ISOFIX |
| Harness: | 5-point internal |
| Seat ventilation: | Yes, holes |
| Removable cover | Yes |
| Machine washable cover: | 30 degrees |
| With insert for children between 61 to 105 cm | |
| ASIP is included |
| Product lifetime* | 15 years |
| *This information is based on tests defined by Axkid and carried out in external laboratories. These tests confirm that the product is designed and tested to last for the stated period under normal use. Please note that this is not an independent certification. | |
| Product weight* | 10,0 kg |
| *Weight stated without packaging and accessories. This figure is provided for transparency and does not indicate environmental performance.* | |
| Recycled materials* | 30,9%* |
| *The percentage shown comes from a third-party verified Environmental Product Declaration (EPD). It refers only to the share of recycled material in the product, not its overall environmental impact. Full details are available in the EPD document. Show EPD (One 3) | |
| Emissions During Product Manufacturing* | 97,8kgCo2e* |
| *The figure comes from a third-party verified Environmental Product Declaration (EPD). It shows the product’s greenhouse gas emissions (in CO₂ equivalents) from materials, manufacturing, and assembly. This value does not include emissions from transport, use, or end-of-life. Complete life-cycle data is available in the EPD document. This value is provided for transparency and comparability only. Show EPD (One 3) |
BE SEAT SAVVY
Will it fit my car?
All car seats sold in our e-commerce are delivered with a 14 day car-fit guarantee promise. If the seat does not fit in your car, we will take it back at no extra cost.
Why is rear-facing 5 times safer?
The key benefit is rear-facing car seats offer superior head, neck and spine protection and distribute the crash forces over a larger area, significantly reducing the forces upon the neck. Read more below.
How do I install the seat correctly?
Our car seats are designed to be easy to install correctly. However, should you still feel uncertain and want a second opinion – simply book a free video installation support with our experts.
What is the safest placement?
The rear seat in a car, either behind the front passenger seat or the middle seat, offers the best protection for a child. Check our vehicle list to view where you can position the car seat in your car.
