Flat Recline i-Size Infant Car Seat | Birth to 13kg
Introducing the Nuna ARRA™ Flex Car Seat in Cosmopolitan – a beautifully crafted infant carrier designed for parents who want ultimate comfort, advanced safety, and effortless flexibility from day one. Finished in Nuna’s contemporary Cosmopolitan colourway, this modern, fashion-forward tone brings a refined, urban edge while delivering the premium performance Nuna is known for.
From quick errands to long-distance journeys, the ARRA Flex allows you to move from car to pushchair to carry mode without disturbing your baby, making everyday travel simpler and more comfortable.
The Cosmopolitan colourway offers a sleek, contemporary look with subtle tonal depth – perfect for parents who want a stylish, modern neutral that feels both premium and versatile. Effortlessly pairing with a wide range of pushchairs, it’s ideal for those who prefer a clean, understated aesthetic with a fashion-led edge.
At the heart of the ARRA Flex is its 157° near-flat recline, allowing your baby to lie in a more natural position that supports healthy spine, hip, and head development.
Unlike traditional infant carriers, this innovative design makes the ARRA Flex suitable for longer journeys, giving parents greater freedom when travelling.
With three recline positions, your baby stays comfortable whether in the car, attached to your pushchair, or carried on the go.
The ARRA Flex is designed to fit around your lifestyle, offering multiple installation options:
Compatible with Nuna BASE™ next and BASE™ curv (360° rotating ISOFIX bases)
Secure vehicle seat belt installation – ideal for taxis or second cars
Travel system ready with Nuna pushchairs
TÜV aircraft certified – safe for use on aeroplanes
Part of Nuna’s NEXT™ system, it integrates seamlessly into a modular travel solution for your child’s early years.
Built to meet the latest i-Size (R129) safety standards, the ARRA Flex is engineered for total peace of mind:
EPP energy-absorbing foam for enhanced side impact protection
Tailor tech™ memory foam headrest for a secure, custom fit
High-strength shell and handle design to protect baby’s head and body
Fully side impact tested
Every detail is designed to keep your baby safe on every journey.
Designed with both baby and parent in mind:
Lightweight design (just 3.8kg) – easy to carry and lift
Removable newborn insert with Merino wool & TENCEL™ for breathable softness
10-position adjustable headrest to grow with your baby
UPF 50+ canopy with mesh peek-a-boo window
Luxury leatherette carry handle for a premium finish
The Cosmopolitan colourway enhances the overall aesthetic with a sleek, modern finish that feels both luxurious and effortlessly practical.
Recognised globally for innovation and design excellence:
Red Dot Product Design Award Winner
iF Design Award Winner 2025
European Product Design Award 2024
GREENGUARD Gold Certified for low emissions
Suitable from birth to approx. 24 months (40–87cm / up to 13kg)
Rear-facing only
Weight: 3.8kg (excluding insert & canopy)
Dimensions: L 64–73.5 × W 43.5 × H 58.5 cm
Safety Standard: ECE R129/03 (i-Size)
✔ Sleek, modern neutral colourway with a premium finish
✔ Flat recline design for improved comfort and development
✔ Lightweight and easy to carry
✔ Multiple install options – base or belt
✔ Travel system compatible
✔ Premium Nuna build quality
Pair with the Nuna BASE curv or BASE next for effortless installation and rotation — or combine with a Nuna pushchair for a seamless travel system from birth.
Delivery is 2-7 Working Days.
