Nuna ARRA™ Flex Car Seat – Cosmopolitan

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.

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A Modern, Urban Neutral – Cosmopolitan

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.

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✨ Ergonomic Comfort for Longer Journeys

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.

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Flexible Installation for Everyday Life

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.

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️ Advanced i-Size Safety

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.

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Premium Comfort & Thoughtful Details

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.

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Award-Winning Design

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

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Product Specifications

• 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)

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Why Choose the Nuna ARRA Flex in Cosmopolitan?

✔ 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

Complete Your Travel System

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.