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About This Product

Product Description

Doona X Infant Car Seat & Stroller – R129 i-Size – 40–85cm – Birth to 13kg

The Doona X Infant Car Seat & Stroller combines a rear-facing infant car seat and stroller in one integrated travel system, helping make everyday journeys with your baby simpler. Suitable from birth for infants measuring 40–85cm and up to a stated maximum weight of 13kg, the Doona X converts from car seat to stroller without requiring a separate pushchair chassis.

Designed in accordance with ECE R129 requirements, the Doona X features an integrated 5-point harness, adjustable headrest, removable newborn insert and Side Impact Protection. In stroller mode, three recline positions – Sit, Relax and Lay Back – provide additional flexibility, while the integrated wheel system and compact design make it a practical choice for everyday family travel.

Car Seat & Stroller

An integrated 2-in-1 design that converts between rear-facing infant car seat and stroller modes without a separate chassis.

3 Recline Positions

Stroller mode offers Sit, Relax and Lay Back positions, providing greater flexibility during everyday outings.

40–85cm

Suitable from birth for infants measuring 40–85cm, up to a stated maximum child weight of 13kg.

R129 i-Size

Designed to comply with ECE R129 child restraint requirements according to the supplied product information.

Side Impact Protection

Integrated Side Impact Protection forms part of the Doona X infant car seat design for vehicle travel.

ISOFIX Compatible

Compatible with the Doona ISOFIX X Base for convenient vehicle installation. The compatible base is sold separately.

Key Features
  • Integrated infant car seat and stroller design.
  • Converts from car seat to stroller without requiring a separate pushchair chassis.
  • Suitable from birth within the manufacturer's stated usage limits.
  • Suitable for babies measuring 40–85cm.
  • Maximum stated child weight of 13kg.
  • Approximate age suitability up to 15 months, subject to child size and manufacturer limits.
  • Rear-facing vehicle installation only.
  • ECE R129 compliant according to the supplied product information.
  • Three stroller recline positions: Sit, Relax and Lay Back.
  • Integrated 5-point harness.
  • Side Impact Protection.
  • Adjustable headrest.
  • Removable newborn insert.
  • Shock-absorbing mechanism.
  • Compatible with the Doona ISOFIX X Base, sold separately.
  • Air travel approved according to the supplied product information, subject to individual airline acceptance.
Car Seat & Stroller in One
  • The Doona X combines a rear-facing infant car seat and stroller into one integrated product.
  • The stroller system forms part of the car seat rather than requiring a separate pushchair chassis.
  • This allows the product to transition between vehicle and stroller configurations without transferring your baby into a separate pushchair seat.
  • Ideal for short journeys, shopping trips, appointments and everyday family travel.
  • Always follow Doona's instructions when changing between car seat and stroller configurations.
Three Stroller Recline Positions
  • The Doona X provides three recline positions when used in stroller mode.
  • Sit: Provides a more upright stroller position.
  • Relax: Offers an intermediate reclined position.
  • Lay Back: Provides the most reclined of the three stroller positions.
  • Use each recline position only as instructed by Doona and ensure the adjustment mechanism is securely engaged before moving the stroller.
  • The Lay Back position does not make the Doona X a replacement for a dedicated cot, crib, carrycot or other approved infant sleep surface.
Suitable From Birth – 40–85cm
  • Designed for use from birth within the manufacturer's stated child size requirements.
  • Child Height Range: 40–85cm.
  • Maximum Child Weight: 13kg.
  • Approximate Age: Birth to approximately 15 months.
  • The approximate age range is only a guide; child height, weight and Doona's manufacturer requirements determine continued suitability.
  • Stop using the product once your child reaches any manufacturer-specified usage limit.
Removable Newborn Insert
  • A newborn support insert is included for use during the appropriate early stage.
  • The insert helps provide the intended seating configuration for smaller babies within the approved usage range.
  • Use and remove the newborn insert only in accordance with Doona's instructions.
  • Do not add aftermarket cushions, padding, positioners or inserts that have not been specifically approved for use with the Doona X.
ECE R129 Child Restraint Standard
  • The Doona X complies with ECE R129 requirements according to the supplied product information.
  • It is designed for rear-facing infant vehicle travel within its approved child size range.
  • Always follow Doona's installation instructions and check compatibility with your vehicle and intended seating position.
  • Compliance with R129 does not by itself mean that every vehicle or seating position is compatible.
Rear-Facing Vehicle Installation
  • The Doona X is designed for rear-facing vehicle use only.
  • Always install the child restraint using a manufacturer-approved installation method.
  • Follow both the Doona instructions and relevant vehicle handbook guidance.
  • Check that the child restraint is correctly installed and secure before every journey.
  • Never use a rear-facing child restraint on a passenger seat protected by an active frontal airbag.
Integrated 5-Point Harness
  • An integrated 5-point harness helps keep your baby correctly positioned within the restraint.
  • Adjust the harness according to your baby's size and Doona's instructions.
  • Harness straps should lie flat against the child and must not be twisted.
  • Ensure the harness is appropriately tightened before every journey.
  • Avoid bulky clothing underneath the harness, as this can affect restraint fit.
Adjustable Headrest
  • The adjustable headrest allows the restraint setup to be adapted as your baby grows within the approved usage range.
  • Position the headrest according to Doona's manufacturer guidance.
  • Regularly reassess the headrest and harness settings as your baby's height changes.
  • Never modify the headrest or harness system.
Side Impact Protection
  • Side Impact Protection forms part of the Doona X child restraint design.
  • Install and use the product exactly as instructed so all safety-related components can function as intended.
  • Do not remove, modify or interfere with safety-critical components.
  • Stop using the product if any safety-related component becomes damaged.
Shock-Absorbing Mechanism
  • The Doona X incorporates a shock-absorbing mechanism according to the supplied product information.
  • This forms part of the product's integrated travel design.
  • Always inspect the chassis, wheels and related mechanisms regularly for signs of wear or damage.
  • Do not modify or interfere with the stroller or car seat mechanisms.
Doona ISOFIX X Base Compatible
  • The Doona X is compatible with the Doona ISOFIX X Base.
  • The ISOFIX X Base is sold separately and is not listed as included with this product.
  • Always confirm that your vehicle has compatible installation points before purchasing or using an ISOFIX base.
  • Install the base and child restraint exactly as described in the relevant Doona instructions.
  • Check all installation indicators and support components where applicable before beginning a journey.
Compact Travel-Friendly Design
  • The integrated stroller system reduces the need to carry a separate pushchair chassis during suitable outings.
  • Its compact format is particularly useful for urban travel, appointments and shorter everyday journeys.
  • Folded Dimensions: Approximately W44 × L72.3 × H45.6cm.
  • Unfolded Dimensions: Approximately W44 × L89.3 × H98–103cm.
  • Product Weight: Approximately 8.3kg.
  • Check available vehicle, home or luggage space before purchase where dimensions are important.
Air Travel
  • The supplied product information states that the Doona X is approved for air travel.
  • Airline rules, aircraft seating arrangements and child restraint requirements vary.
  • Always contact your airline before travelling to confirm acceptance of the Doona X on your specific flight.
  • Follow both Doona and airline instructions when using the child restraint during air travel.
Product Specifications
  • Brand: Doona.
  • Model: Doona X.
  • Product Type: Integrated Infant Car Seat & Stroller.
  • Suitable From: Birth within manufacturer limits.
  • Child Height Range: 40–85cm.
  • Maximum Child Weight: 13kg.
  • Approximate Age Range: Birth to approximately 15 months.
  • Vehicle Direction: Rear-Facing Only.
  • Safety Standard: ECE R129 according to supplied product information.
  • Stroller Recline: 3 Positions – Sit, Relax & Lay Back.
  • Harness: Integrated 5-Point Harness.
  • Headrest: Adjustable.
  • Newborn Insert: Removable & Included.
  • Side Impact Protection: Yes.
  • Shock-Absorbing Mechanism: Yes.
  • ISOFIX Base Compatibility: Doona ISOFIX X Base.
  • ISOFIX Base Included: No – Sold Separately.
  • Folded Dimensions: Approximately W44 × L72.3 × H45.6cm.
  • Unfolded Dimensions: Approximately W44 × L89.3 × H98–103cm.
  • Product Weight: Approximately 8.3kg.
  • Air Travel: Approved according to supplied product information, subject to airline acceptance.
What's Included
  • 1 x Doona X Infant Car Seat & Stroller.
  • 1 x Removable Newborn Support Insert.
  • Integrated 5-Point Harness.
  • Integrated Stroller / Wheel System.
  • Adjustable Headrest.
  • Please Note: Doona ISOFIX X Base is sold separately.
Ideal For
  • Newborn and infant travel within the stated 40–85cm and 13kg usage limits.
  • Families wanting an integrated infant car seat and stroller.
  • Short transitions between vehicle and stroller use.
  • Urban and town travel.
  • Shopping trips and appointments.
  • Everyday family transport.
  • Parents who value multiple stroller recline positions.
  • Families wanting to avoid transporting a separate pushchair chassis for suitable outings.
  • Air travel where the individual airline confirms acceptance.
Cleaning & Care
  • The seat cover, canopy and shoulder pads are removable and washable according to the supplied product information.
  • Always follow Doona's manufacturer washing and care instructions for fabric components.
  • Clean suitable hard surfaces using a soft damp cloth.
  • Avoid harsh chemicals or unsuitable cleaning products that could damage the restraint or stroller components.
  • Allow all components to dry completely before reassembly or reuse.
  • Regularly remove dirt and debris from the wheels and moving mechanisms.
  • Inspect the harness, headrest, wheels, frame, recline and conversion mechanisms regularly.
Important Car Seat Safety Information
  • Always read and follow the Doona X instruction manual before first use.
  • Use the product only within the manufacturer's stated height, weight and developmental limits.
  • Do not use beyond 85cm or 13kg, or beyond any other manufacturer-specified limit.
  • The approximate 15-month age range is a guide only and does not override the stated height or weight limits.
  • The Doona X must be used rear-facing during vehicle travel.
  • Check compatibility with your vehicle and intended seating position before installation.
  • Install the child restraint exactly according to Doona and vehicle manufacturer instructions.
  • Always secure your child using the integrated 5-point harness.
  • Check that the harness is correctly positioned, lies flat and is appropriately tightened before every journey.
  • Never use a rear-facing child restraint on a passenger seat protected by an active frontal airbag.
  • Only use the newborn insert during the stage specified by Doona.
  • Do not add unapproved cushions, padding, inserts, liners or accessories.
  • Do not use the car seat if it has been involved in a collision or if any safety-critical component has been damaged.
  • Never modify the child restraint, harness, headrest or integrated mechanisms.
  • Regularly inspect the product for damage, excessive wear or malfunction.
Important Stroller Safety Information
  • Always follow Doona's instructions when converting the Doona X into stroller mode.
  • Never leave a baby or child unattended.
  • Ensure all wheels, recline settings and stroller locking mechanisms are securely engaged before use.
  • Always use the integrated harness correctly while your baby is in stroller mode.
  • Keep your baby, other children and fingers completely clear of moving components during conversion, folding or adjustment.
  • Engage the parking brake whenever the stroller is stationary and before placing your baby into or removing them from the product.
  • Use the Sit, Relax and Lay Back positions only as described in Doona's instructions.
  • Take additional care around roads, kerbs, slopes, steps and uneven surfaces.
  • Never use the stroller on stairs or escalators with a baby inside.
  • Do not hang heavy bags or other items from the handle, as this can affect stability.
  • Regularly inspect the wheels, brakes, harness, frame, recline and conversion mechanisms.
  • Stop using the product if any safety-critical component becomes damaged, loose or fails to operate correctly.
Important Infant Car Seat & Sleep Information
  • The Doona X is primarily an infant car seat for vehicle travel with an integrated stroller function.
  • The stroller's Lay Back recline position should not be interpreted as making the product a dedicated infant sleep surface.
  • Follow Doona's guidance regarding how long your baby should remain in the car seat.
  • For routine or prolonged sleep, use an appropriate separate firm, flat and clear infant sleep surface in line with current safer-sleep guidance.
  • Do not add pillows, loose bedding, positioners, extra mattresses or unapproved padding.
  • Always ensure your baby's face remains uncovered and their breathing is unobstructed.
  • Regularly check your baby during both vehicle and stroller use.
Delivery Information
  • Estimated delivery is typically 3–10 working days.
  • This item may be dispatched from trusted UK or EU partner warehouses.
  • Delivery times can vary depending on stock location and processing times.
  • Where multiple products are ordered, items may arrive separately.
Returns & Support
  • Returns are accepted in line with our returns policy.
  • Customer support is available for product and order enquiries.
  • Secure online checkout and clear returns information are provided.
  • UK customer support is available Monday–Friday.
Why Buy From Hush Little Baby?
  • UK-based online baby and nursery retailer.
  • Carefully selected products from trusted suppliers and established baby brands.
  • Secure online checkout.
  • Friendly customer support for product and order enquiries.
  • Clear delivery and returns information.
  • Estimated delivery is typically 3–10 working days.
  • Products may be fulfilled directly through trusted UK or EU partner warehouses.
  • Where an order contains multiple items, products may arrive separately.
  • UK customer support available Monday–Friday.
Delivery Information

Estimated delivery is typically 3–5 working days. Delivery times may vary depending on product type, supplier processing and courier service.

Returns & Support

Returns are handled directly by Hush Little Baby in line with our returns policy. Customer support is available Monday to Friday.

Business & Fulfilment

Hush Little Baby is operated by James Phillipson as a UK sole trader. Some items may be dispatched from trusted UK or European distribution partners, but all customer service, returns and order support are handled directly by Hush Little Baby.

£499.99