Nuna ARRA Flex i-Size Infant Car Seat with Isofix Base Curv

Nuna ARRA Flex i-Size R129 Infant Car Seat with Base Curv Isofix Base

Experience the ultimate in infant car seat convenience and innovation with the Nuna ARRA Flex paired with the revolutionary Base Curv - a complete solution that combines groundbreaking recline technology with Nuna's most advanced rotating ISOFIX base. This premium bundle brings together the exceptional flexibility of the ARRA Flex with the effortless access of ProxiPivot technology, transforming your daily car seat interactions from a potential struggle into a smooth, elegant motion.

For those busy days and long journeys, the ARRA Flex provides a smooth transition from crib to carrier, offering unprecedented three recline positions including a revolutionary 157° near-flat recline. When paired with the Base Curv's 360° rotation and simultaneous spin-and-slide mechanism, you get a system that makes every journey easier on your back and more comfortable for your baby.

Now available in stunning new 2026 colours - Caviar, Chateau, Chestnut, and Pistachio - this award-winning combination represents the pinnacle of modern infant car seat design.

Revolutionary 157° Recline Position

The standout feature of the ARRA Flex is its exceptional 157° recline angle—the most relaxed recline available in an infant car seat. This near-flat position keeps baby's head, spine, and hips in an ideal position for healthy development, providing significant benefits for your little one's wellbeing during travel.

Crucially, this innovative recline makes the ARRA Flex exempt from the standard 2-hour limit usage recommendation that applies to traditional semi-reclined infant carriers. This means you can travel with complete confidence on longer journeys, knowing your baby is positioned optimally for breathing, spinal development, and comfort throughout extended trips—no need to stop every two hours to remove your baby from the car seat.

The three recline positions adapt to different scenarios: the 157° position for optimal health and extended travel, mid-range positions for balanced comfort and visibility, and more upright options for alert babies on shorter journeys. You can adjust between positions even when the seat is clicked onto the Base Curv, providing remarkable flexibility throughout your day.

ProxiPivot Technology – The Ultimate in Access

What sets the Base Curv apart from standard rotating bases is Nuna's revolutionary ProxiPivot technology—a game-changing innovation that allows the ARRA Flex to simultaneously rotate 360° and slide towards you in a single, fluid motion. Rather than just spinning in place like traditional rotating seats, the Base Curv brings your baby closer to the door opening, dramatically improving access whether you're lifting a sleeping newborn or managing a wriggling infant.

This ingenious mechanism is particularly beneficial for parents who frequently park in tight spaces, have mobility concerns, or simply want to minimise back strain during the countless daily interactions with their baby's car seat. The smooth, controlled movement feels intuitive and premium, reflecting Nuna's commitment to thoughtful engineering that genuinely improves parents' lives.

The ProxiPivot system is elegantly integrated into the base structure, requiring no additional effort or complicated actions—simply unlock, and the seat glides towards you as it rotates. When you're ready to travel, rotate back and the seat automatically returns to its secure rear-facing position with clear indicators confirming correct placement.

Secure ISOFIX Installation with Load Leg

The Base Curv installs securely using your vehicle's ISOFIX anchor points combined with a supporting load leg that extends to the vehicle floor. This dual-point installation method provides exceptional stability and is proven to be one of the safest installation systems available, significantly reducing the risk of installation errors compared to seat belt installations.

The ISOFIX connectors click firmly into your vehicle's anchor points with clear visual and audible indicators confirming correct installation. The adjustable load leg extends to contact your vehicle floor, providing additional support and helping to manage impact forces in the event of a collision. Built-in installation indicators on the base give you instant confidence that everything is correctly secured before every journey.

Once installed, the Base Curv remains in your vehicle, and you simply click the ARRA Flex on and off as needed—perfect for moving sleeping babies indoors without disturbing them, or transferring the carrier to a pushchair for seamless travel system use.

Exceptional Versatility Beyond the Base

Whilst the Base Curv provides unmatched convenience at home, the ARRA Flex maintains its exceptional versatility for other scenarios:

Vehicle Seat Belt Installation: The ARRA Flex installs securely using seat belts without needing the base—perfect for second vehicles, taxis, or travel with grandparents.

Aeroplane Certified: The ARRA Flex is TÜV-certified for in-flight safety when secured with an aircraft lap belt. The 157° recline design means your baby stays comfortable during flights, and the lightweight 3.8kg construction makes carrying through airports manageable.

Travel System Ready: Using post adaptors, the ARRA Flex connects to compatible pushchairs, creating a seamless travel system that protects sleeping babies from disturbance.

This bundle gives you the best of both worlds: effortless convenience with ProxiPivot rotation at home, plus the flexibility to travel confidently without the base when needed.

Outstanding Safety Features

The ARRA Flex with Base Curv bundle represents a comprehensive safety system, combining multiple layers of protection:

The ARRA Flex is fully i-Size certified to ECE R129/03 standards, which include mandatory side impact testing. The integrated EPP (expanded polypropylene) foam takes side impact security to the next level, absorbing and dissipating impact energy away from your baby during lateral collisions.

The headrest features Nuna's patented Tailor Tech memory foam, which moulds to your baby's head shape for both comfort and enhanced protection. This innovative foam technology creates a custom fit that improves positioning and support as your baby grows through the 10 adjustable headrest positions.

The heavy-duty high-strength shell keeps your little one securely in place, whilst the safety-engineered carry handle is designed to transfer a large portion of crash forces into the shell, protecting your baby's particularly sensitive head area during an impact.

The Base Curv's robust ISOFIX and load leg installation provides the stable foundation essential for the seat's safety systems to function optimally in the event of a collision, whilst the clear installation indicators help ensure correct setup every time.

No-Rethread Harness System

The ARRA Flex features an intelligent no-rethread 3-point harness that adjusts automatically as you raise the headrest. The one-handed height-adjustable headrest offers 10 positions to accommodate growth from newborn through to approximately 24 months, and as you adjust the headrest, the harness shoulders move seamlessly along with it.

This clever design eliminates the frustrating process of unthreading and rethreading harness straps through different slots as your baby grows, ensuring your child always has the correct harness height for optimal safety whilst making adjustments remarkably straightforward.

Exceptionally Lightweight Design

At just 3.8kg (without insert or canopy), the ARRA Flex is one of the lightest i-Size infant car seats available. This featherlight design makes carrying your baby from car to home, through airports, or around town notably easier—particularly when you're managing all the other essentials of new parenthood.

The luxe leatherette carry handle provides a secure, comfortable grip that won't slip or cause discomfort even during extended carrying. Despite its lightweight construction, the ARRA Flex doesn't compromise on safety or features—it's intelligent engineering that prioritises both portability and protection.

Premium Comfort Features

Every journey is more pleasant with the ARRA Flex's comprehensive comfort features. The removable newborn insert provides customisable support for tiny babies, crafted from an environmentally friendly blend of Merino wool and TENCEL™ branded lyocell fibres. This natural material combination is super soft against delicate skin, naturally controls moisture, and provides temperature regulation to keep your baby comfortable in all seasons.

The removable full-coverage UPF 50+ canopy offers generous sun protection with a flip-out eyeshade for extra coverage and a mesh peek-a-boo window that allows you to check on your little one without disturbing them.

GREENGUARD Gold Certified

Both the ARRA Flex and Base Curv have achieved prestigious GREENGUARD Gold Certification, meeting some of the world's most rigorous chemical emissions standards including formaldehyde and phthalate levels. This certification provides assurance that these products won't contribute to indoor air pollution in your vehicle, creating a healthier environment for your baby during every journey.

Award-Winning Design Excellence

The ARRA Flex has received multiple prestigious international awards, recognising its innovative approach to infant car seat design:

• European Product Design Award – Top Design Winner 2024
• iF Design Award Winner 2025
• Red Dot Product Design Winner

These accolades reflect the ARRA Flex's exceptional blend of safety innovation, ergonomic design, and aesthetic appeal—baby gear that doesn't just perform brilliantly but looks beautiful too.

Stunning New 2026 Colours

The ARRA Flex is now available in five sophisticated new 2026 colours:

• Caviar: Classic deep black with timeless elegance
• Chateau: Refined neutral grey with contemporary sophistication
• Chestnut: Warm rich brown with natural appeal
• Pistachio: Fresh soft green with distinctive character

Each colourway features premium fabrics and finishes that complement Nuna's design aesthetic whilst being practical for daily use.

Long-Term Value and Convenience

The ARRA Flex with Base Curv bundle represents exceptional long-term value. This complete system serves you from birth through to approximately 13kg/87cm (around 24 months), and the Base Curv continues to be useful as you transition to other NEXT system products like the Todl Next convertible seat, potentially serving your family through your child's first four years.

The Base Curv remains in your vehicle throughout, becoming a familiar part of your daily routine. You'll become expert at using the ProxiPivot rotation, adjusting recline positions, and operating the harness system, making every interaction smooth and confident. This consistency is particularly valuable during the sleep-deprived early months when simplicity is precious.

Who Is the Nuna ARRA Flex with Base Curv Perfect For?

This premium bundle is the ideal choice for:

• Families seeking maximum convenience with ProxiPivot technology for effortless access
• Those who frequently take long journeys and want to avoid the 2-hour time limit
• Parents with tight parking spaces or mobility considerations who need enhanced seat access
• Families planning to use multiple NEXT system products for long-term value
• Anyone wanting the complete solution with both base convenience and travel flexibility
• Parents concerned about optimal positioning for healthy spinal and hip development
• Eco-conscious families valuing natural materials and GREENGUARD Gold certification
• Those seeking award-winning design that combines innovation with beautiful aesthetics

Technical Specifications

Nuna ARRA Flex Infant Car Seat:

Age & Weight:

• Orientation: Rear-facing only
• Child height: 40-87cm
• Child weight: Birth to 13kg (approximately 24 months)

Product Details:

• Weight: 3.8kg (without insert or canopy)
• Safety standard: ECE R129/03 (i-Size certified)
• Recline positions: 3 (including 157° near-flat position)
• Headrest positions: 10 adjustable heights
• Harness: No-rethread 3-point system
• Side Impact Protection: EPP energy-absorbing foam
• Head protection: Patented Tailor Tech memory foam
• Shell: Heavy-duty high-strength plastic
• Handle: Luxe leatherette with safety-engineered design
• Canopy: Removable UPF 50+ with flip-out eyeshade and mesh window
• Insert: Merino wool and TENCEL™ lyocell blend (removable)

Nuna Base Curv:

• Installation method: ISOFIX with load leg support
• Rotation: 360° with ProxiPivot technology (simultaneous spin and slide)
• Compatibility: All NEXT system products (ARRA Flex, Pipa Next, Cari Next, Todl Next models CS14910, CS14911, and newer)
• Safety standard: ECE R129/03 compliant
• Installation indicators: Visual confirmation of correct installation
• Certifications: GREENGUARD Gold Certified

Additional Installation Options (ARRA Flex):

• Vehicle seat belt: Baseless installation for second vehicles/travel
• Aircraft: TÜV-certified for aeroplane use with lap belt
• Travel system: Compatible pushchairs with post adaptors

Certifications:

• i-Size certified: ECE R129/03 compliance
• GREENGUARD Gold Certified: Stringent emissions standards (both seat and base)
• TÜV aircraft certified: In-flight safety approval
• Factory certified: ISO 14001, ISO 9001, OHSAS 18001

Awards:

• European Product Design Award – Top Design Winner 2024
• iF Design Award Winner 2025
• Red Dot Product Design Winner

Available Colours (2026):

• Caviar
• Chateau
• Chestnut
  
• Pistachio

What's Included in This Bundle

• Nuna ARRA Flex i-Size infant car seat
• Nuna Base Curv rotating ISOFIX base with ProxiPivot technology
• Removable newborn insert (Merino wool and TENCEL™ blend)
• Removable UPF 50+ canopy with eyeshade
• Instruction manuals for both seat and base

Why Choose Little Peas for Your Nuna ARRA Flex with Base Curv?

At Little Peas, we're specialists in car seat safety with over 15 years of expertise. Our knowledgeable team can provide expert guidance on the ARRA Flex's innovative 157° recline system, demonstrate the impressive ProxiPivot technology in person, and explain how the NEXT system can save you money throughout your child's first four years.

We offer free UK delivery, and you're welcome to visit our Dunfermline showroom to see and experience the ARRA Flex with Base Curv for yourself in all the stunning new 2026 colours. We can demonstrate the revolutionary ProxiPivot motion, show you the three recline positions, and explain how the no-rethread harness works. Our friendly experts can also advise on expanding your NEXT system collection with other compatible products.

Invest in the ultimate combination of innovation, convenience, and safety with the Nuna ARRA Flex and Base Curv—revolutionary recline technology meets effortless access, creating a system that transforms infant car seat use whilst keeping your baby perfectly positioned from birth through toddlerhood. Read more at nunababy.eu