Britax Romer BABY-SAFE i-SIZE Cosmos Black Car Seat with Flex Base Bundle
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Britax Romer BABY-SAFE i-SIZE Cosmos Black Car Seat with Flex Base Bundle

was £345.00 save £103.50
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    i-Size safety without compromise for your growing baby. BABY-SAFE i-SIZE has been designed to conform to the new car seat regulation ECE R129, and is suitable for newborns up to 15 months, so they can fit into the seat up to 83 cm in height. The infant carrier has a newborn insert for extra support, also offering energy absorption in case of an impact. The insert can be removed and the height of the headrest adjusted, allowing for more space as your child grows.


    ADJUSTABLE ANGLE - With our Flex Base you can easily adjust he angle of the infant carrier for a flatter, more ergonomic yet safe position for your child during any journey.

    HEIGHT ADJUSTABLE SUPPORT LEG - The support leg provides extra stability for the infant carrier base via the vehicle floor. The support leg can be adjusted to suit the height that's best for your car.

    CARRY HANDLES - the integrated handles allow you to easily carry and move the base

    EASY STORAGE - The support leg folds up so you can easily pack it away

    ISOFIX RATCHET SYSTEM - the isofix ratchet system allows the isofix arms to extend so you can easily fit or remove the infant carrier base from the isofix anchorage points in the car. The car seat is compatible with the Uppababy Vista pushchair using the UPPAbaby Vista Car Seat Adaptors (sold separately).


    NEW BORN INSERT - Included to give extra support to small babies

    SUPERIOR SIDE IMPACT PROTECTION (SICT) - SICT offers superior side protection in two steps. It pushes your child away from the impact in a controlled movement and then deforms to absorb energy exerted on your child.

    LIE-FLAT TECHNOLOGY - The patented integral recline mechanism allows you to adjust the flatness of the lying position according to the child’s height.

    ADJUSTABLE HANDLE - The adjustable handle allows you to easily move it to the back and place your child in the infant carrier.

    SUN CANOPY - The sun canopy offers protection for your child from the sun (UPF 50+) and wind.

    EASY RELEASE - With the built in CLICK & GO Adapters the infant carrier can easily be taken off the BABY-SAFE i-SIZE base or pushchair so the parent can remain in an ergonomic, upright position while lifting the carrier up.

    TRAVEL SYSTEM - With the built in CLICK & GO Adapters this car seat is compatibale with any Britax pushchair as well as the UPPAbaby VISTA pushchair using the UPPAbaby Vista Car Seat Adapters (sold separately).

    Fitting Instructions

    Sizes Available
    Car Seat H 58cm x W 44cm x D 67cm, Flex base H 45-72cm x W 44cm x D 64cm
    Colours Available
    Britax Romer
    Pack Size
    One car seat
    Shop by Sale
    Up to 30%
    Direction of Travel
    Rear Facing
    Fitting Type
    ISOFIX Built In
    Child Age
    Up to 15 months
    Child Weight
    Birth to 13kg (approx 12 months)
    Car Seat Group
    Group 0+
    Easy Returns

    We hope you love this product, but if you decide it's not right you can return it for free, here's how:

    Store return - If you live near one of our stores and can easily carry your item, this is the fastest way to return or exchange a product.

    Collect+ return - For products that weigh less than 10kg and are smaller than 60x50x50cm, you can return your item at thousands of collection points around the country. Complete the returns form provided with your delivery and enclose with your parcel. Locate your local collect+ point.

    If your parcel weighs more than 10kg and is larger than 60cmx50cmx50cm, please contact us to arrange a return.

    Exceptions apply, see our full returns policy.