Free shipping for different countries **
Best aftersale service
Excellent customer rating
5% discount (bank payment)

Britax Römer Dualfix 3 i-Size incl. Flex Base

€349.93 * €499.90 * (30% saved)

Prices incl. VAT plus shipping costs

Please choose a variant first



Tree for your child

  • 018.003.075.Indigo-Blue
  • 2000035176

Safe 5% with payment per bank
Free shipping (depending on value)
Excellent customer rating

DUALFIX 3 i-SIZE with Flex Base iSense In this set you get the Dualfix 3 i-Size... more

DUALFIX 3 i-SIZE with Flex Base iSense


In this set you get the Dualfix 3 i-Size reboarder with the matching Flex Base iSense base station. The combination of reboarder and base from Britax-Römer offers you and your child maximum comfort, practical solutions for everyday life and maximum safety. You can read about the features of both parts of this set on this page. You can also find more details below about the recycled covers used with the Dualfix 3 i-Size in the colours Fossil Grey and Atlantic Green.

Features of the Dualfix 3 i-Size


Integrated side impact protection

Side impact protection is particularly valuable as it reduces incoming forces in an accident and directs them away from the child into the shell. The special feature of the Dualfix 3's side impact protection is that it is integrated. So you can't forget to install it.


Premium covers

The covers of the Dualfix 3 i-Size Reboarder are of high quality and particularly soft. Conveniently, they can be removed quickly and easily without having to remove the harness. The covers are also machine washable.


Safe side bolsters

The side bolsters of the Dualfix 3 are particularly deep and soft. Britax-Römer itself describes the cheeks as a protective cocoon that absorbs the forces of an impact. This further supports your child's safety.


Special shoulder pads

The shoulder pads are particularly soft and reduce the forward displacement of your child in the event of an accident. They can be easily removed when they need to be washed. The headrest is V-shaped to reduce uncontrolled movement in the event of an accident.

Features of the Flex Base iSense


360 degree rotation

The base allows you to rotate the reboarder 360 degrees. This allows you to turn the car seat towards the car door to put your child in or lift them out. If your child is over 76 cm tall and 15 months old, you can also have your child ride forward facing.


Adjustable recline angle

To make your child as comfortable as possible, you can adjust the recline angle of the child seat on the base. This way you can let your child sleep peacefully or sit upright so that your child can discover the environment.


Tiltable support bar

The support bar of the Flex Base iSense can be tilted by 8 degrees. This allows you to adjust it perfectly to the backrest of your car seat. The support bar prevents the child seat from tipping over in the event of an accident and is therefore particularly important.


Modular system

If you plan to have another child in the future, you can reuse the base, because the base is part of a modular system. This allows you to install two different infant carriers and two different reboarders on your. You can find more information about this below.

Recycled fabric covers from Britax-Römer


Britax-Römer has developed recycled fabric covers. For this, 100% recycled polyester is reworked into yarn and made into new fabric covers. In this way, up to 29 PET plastic bottles are used in one product. If you want to use the recycled fabric covers, select the colour Fossil Grey or Atlantic Green when choosing the colour of the Dualfix 3 i-Size, as the recycled fabrics are used here.

Technical data of the Dualfix 3 i-Size

Suitable for

  • 61-105 cm or 3 months to 4 years or up to 18 kg
  • rear-facing use: 61 to 105 cm (our recommendation)
  • forward-facing use: 76 to 105 cm

Dimensions and weight

  • 59.4 cm high, 44 cm wide, 46.5 cm deep
  • 5.2 kg

Technical data for Flex Base iSense

Dimensions and weight

  • 43.5 cm high, 44 cm wide, 66 cm deep
  • 9.5 kg


  • ISOFIX anchorage points of your vehicle


  • Baby-Safe iSense infant carrier
  • Baby-Safe 3 i-Size infant carrier
  • Dualfix iSense Reboarder
  • Dualfix 3 i-Size Reboarder

Scope of delivery

  • Britax-Römer Dualfix 3 i-Size Reboarder
  • Britax-Römer Flex Base iSense
Read, write and discuss reviews... more
Customer evaluation for "Britax Römer Dualfix 3 i-Size incl. Flex Base"
Write an evaluation

The fields marked with * are required.

★★★★★ Customer reviews