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Nuna

Nuna ARRA Flex Car Seat Caviar | Flat Recline i-Size Baby Seat (0–13kg)

Nuna ARRA Flex Car Seat Caviar | Flat Recline i-Size Baby Seat (0–13kg)

£250.00 GBP
£250.00 GBP
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⭐ i-Size (R129) approved – advanced safety from birth to 13kg

⭐ 157° near-flat recline – healthier for baby’s spine & longer journeys

⭐ Multiple install options – ISOFIX base or vehicle seat belt

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Nuna ARRA™ Flex Car Seat – Caviar

Flat Recline i-Size Infant Car Seat | Birth to 13kg

Meet the Nuna ARRA™ Flex Car Seat in Caviar – a beautifully engineered infant carrier designed for modern parents who want maximum comfort, flexibility, and safety from day one. Finished in Nuna’s signature Caviar black, this premium car seat combines sleek styling with cutting-edge ergonomic design, making every journey smoother for both you and baby.

Whether you're heading out for a quick trip or a long-distance journey, the ARRA Flex transitions effortlessly from car seat to travel system to carry mode, keeping your baby comfortable without disruption.

✨ Freedom to Move, Comfort to Grow

What sets the ARRA Flex apart is its 157° near-flat recline, allowing your baby to lie in a more natural position – ideal for healthy spine, hip and head development. Unlike traditional infant carriers, this means it’s exempt from the usual 2-hour usage guideline, making it perfect for longer days out.

With 3 recline positions available both in the car and on your pushchair, your baby stays comfortable wherever your journey takes you.

Flexible Installation for Every Family

Designed to fit seamlessly into your lifestyle, the ARRA Flex offers multiple installation options:

  • Compatible with Nuna BASE™ next and BASE™ curv (360° rotating ISOFIX bases)

  • Secure vehicle seat belt installation – no base required

  • Travel system ready with Nuna pushchairs

  • TÜV aircraft certified – safe for air travel

It’s part of Nuna’s NEXT™ system, giving you a modular solution that grows with your child.

️ Advanced Safety You Can Trust

Built to exceed the latest i-Size (R129) safety standards, the ARRA Flex is packed with innovative safety features:

  • EPP energy-absorbing foam for superior side impact protection

  • Tailor tech™ memory foam headrest for a custom, secure fit

  • High-strength shell and handle design to protect baby’s head and body

  • Side impact tested for complete peace of mind

Premium Comfort & Luxury Details

Every detail of the ARRA Flex is designed with comfort 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 – grows with your baby

  • UPF 50+ canopy with mesh window and flip-out eyeshade

  • Luxe leatherette carry handle for a premium feel

The Caviar colourway delivers a timeless, all-black aesthetic with subtle textures and luxury finishes – perfect for parents who want a sleek, understated look.

Award-Winning Design

Recognised globally for its innovation and design:

  • Red Dot Product Design Winner

  • iF Design Award Winner 2025

  • European Product Design Award 2024

  • GREENGUARD Gold Certified for low chemical emissions

Product Specifications

  • Suitable from birth to approx. 24 months (40–87 cm / 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 approved)

Why Parents Love the Nuna ARRA Flex

✔ Near-flat recline – better for baby’s development
✔ Lightweight and easy to carry
✔ Multiple install options – base or belt
✔ Travel system compatible
✔ Premium Nuna quality and design

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.

My Babiie MB450 Luxe 2-in-1 Travel System – Feather

Delivery is 2-7 Working Days.

Nuna ARRA Flex Car Seat Caviar | Flat Recline i-Size Baby Seat (0–13kg)

Nuna ARRA Flex Car Seat Caviar | Flat Recline i-Size Baby Seat (0–13kg)

£250.00 GBP
£250.00 GBP
View full details

Nuna ARRA Flex FAQ

How heavy is the Nuna ARRA Flex?

It weighs just 3.8kg (without insert and canopy), making it one of the lightest reclining infant car seats available – perfect for everyday use.

Is the Nuna ARRA Flex suitable from birth?

Yes, the Nuna ARRA Flex is suitable from birth up to 13kg (approx. 24 months) or 40–87cm in height. It includes a removable newborn insert to provide extra support and comfort for smaller babies.



What makes the ARRA Flex different from other infant car seats?

The standout feature is the 157° near-flat recline, which allows your baby to lie in a more natural position. This supports healthy spine and hip development and makes it ideal for longer journeys, unlike many traditional car seats.


Can I use the Nuna ARRA Flex on a pushchair?

Yes – the ARRA Flex is travel system compatible and can be easily attached to compatible Nuna pushchairs using adaptors, making it perfect for seamless journeys from car to stroller.



Does the Nuna ARRA Flex require an ISOFIX base?

No, it can be installed in multiple ways:


  • With the Nuna BASE next or BASE curv (ISOFIX)

  • Using your vehicle seat belt (no base required)

This makes it a great option for families using multiple cars or taxis.

Is the Nuna ARRA Flex car seat safe?

Absolutely. It meets the latest i-Size (R129) safety standards and includes:


  • Side impact protection with EPP foam

  • Tailor tech™ memory foam headrest

  • Strong protective shell design

It’s designed to deliver maximum safety and peace of mind on every journey.

Is the Nuna ARRA Flex suitable for air travel?

Yes, the ARRA Flex is TÜV aircraft certified, meaning it can be safely used on aeroplanes when secured with a lap belt.