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

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

Regular price £250.00 GBP
Regular price Sale price £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 – Pistachio

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

Introducing the Nuna ARRA™ Flex Car Seat in Pistachio – a beautifully refined infant carrier designed for modern parents who want ergonomic comfort, advanced safety, and effortless flexibility from day one. Finished in a soft, nature-inspired Pistachio green, this contemporary colourway brings a fresh, calming aesthetic to your travel system while maintaining Nuna’s signature premium look.

Designed for real life, the ARRA Flex offers a seamless transition from car seat to pushchair to carry mode, keeping your baby comfortable and undisturbed wherever the day takes you.


A Fresh, Modern Neutral – Pistachio

The Pistachio colourway is a soft, muted green tone that feels both on-trend and timeless. Perfect for parents looking for something lighter than black but still beautifully neutral, it pairs effortlessly with a wide range of pushchairs and accessories.


✨ Ergonomic Comfort for Every Journey

At the heart of the ARRA Flex is its 157° near-flat recline, allowing your baby to lie in a more natural, ergonomic position – ideal for healthy spine, hip, and head development.

Unlike traditional infant carriers, this design supports longer, more comfortable journeys, making it perfect for busy days, travel, and everyday life.

With three recline positions, your baby stays supported whether in the car, on a pushchair, or on the move.


Designed for Ultimate Flexibility

The ARRA Flex adapts to your lifestyle with multiple installation options:

  • ISOFIX compatible with Nuna BASE™ next or BASE™ curv

  • Vehicle seat belt installation – no base needed

  • Travel system ready – easily attaches to Nuna pushchairs

  • TÜV aircraft certified – safe for use on aeroplanes

Part of Nuna’s NEXT™ system, it offers a modular solution designed to grow with your child over the first four years.


️ Advanced i-Size Safety

Safety is at the core of every Nuna design. The ARRA Flex is:

  • i-Size approved (R129) with side impact testing

  • Equipped with EPP energy-absorbing foam for enhanced protection

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

  • Built with a high-strength protective shell and handle system

Every detail is engineered to provide maximum protection and peace of mind.


Premium Comfort & Thoughtful Details

From newborn to toddler, the ARRA Flex is designed for everyday comfort:

  • Lightweight at 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 window and flip-out eyeshade

  • Luxury leatherette carry handle for a premium finish

The result is a car seat that feels as good as it looks – for both parent and baby.


Award-Winning Design

Globally recognised 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


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)


Why Choose the Nuna ARRA Flex in Pistachio?

✔ Unique, modern neutral green colourway
Flat recline design for healthier 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.

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

Delivery is 2-7 Working Days.

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

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

Regular price £250.00 GBP
Regular price Sale price £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.