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Jané Koos iSize R1, 40-83cm 0-18 months Baby Car Seat

Jané Koos iSize R1, 40-83cm 0-18 months Baby Car Seat

Regular price £199.00 GBP
Regular price Sale price £199.00 GBP
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The new iSize car seat with dual installation: isofix or seat belt.

This is an improved version of the "i-SIZE" kid safety system. When paired with the iPlatform base, it has received approval under Regulation ECE R129/00 for use on "i-SIZE compatible" vehicle seats.

The KOOS iSIZE R1 child car seat can also be placed via ISOFIX (category D, according the vehicle owner's manual), or using the universally recognised car seat belt. You can select the installation approach that best meets your demands and the needs of your car.

The Koos iSize R1 may be inserted into the vehicle or mounted onto the Jané chassis to create a travel system with only one simple click-and-go motion because it is also equipped with the PROFIX system. Get yours now at Kidsly!



Jane Koos iSize profix

Pro-fix System 

Maximum convenience with a single click

The Jané KOOS iSIZE infant car seat features the unique PROFIX mechanism, just like the rest of the Jané line. This indicates that it can be attached swiftly and securely with only one motion to an ISOFIX base in a vehicle or to the chassis of a pushchair. With Jané, everything is integrated into the system, allowing you to change your travel arrangement with the push of a button.

Why Buy Me?  

isize Isofix to optimise babys safety

Install with Seat Belt
Koos iSize R1 can be installed using the vehicle seat belt or

Simultaneous harness and headrest system

iPlatform Isofix Base
Koos iSize R1 can also be installed using the iPlatform isofix base.

Increase head protection

Highest Safety
Greatly improved safety performance and protection for baby's head and neck with new high impact-absorbing memory foam head protector.

Simultaneous harness and headrest system

Simultaneous Adjustments
Simultaneous safety harness and headrest adjustment. Complete with 40-60 cm cushion insert, for newborns.

Side impact protection

Side Impact Protectors
Built-in side impact protection for greater safety.

Travel System Compatible

When used with the optional Pro-fix to Multi Car Seat converters, it can be fastened to any Jané pushchairs using its Pro-fix installation method and is also compatible with other brands of strollers on the market that have Multi, Universal, or Maxi-Cosi attaching points.

i-Size Car Seats and Vehicle Compatibility

Seat Belt Installation

This child seat is classified as "Universal," ensuring compatibility with a wide range of vehicles. When the term "Universal" is used by the automaker, it means that the seat can be installed in the vehicle's seats without any compatibility issues. Please refer to your car's manual for further guidance.

Isofix Base Installation

The i-Size (R129) safety standard has been collaboratively developed by car manufacturers to ensure seamless compatibility between Child Restraint Systems (CRS) and vehicles. An i-Size CRS is fully compatible with an i-Size vehicle seat and is also compatible with nearly all cars equipped with Isofix anchors. If you have any questions, feel free to consult our customer support at the time of purchase or reach out to JANÉ directly for further assistance.

Age Range and Installation Methods 

Group : 0+

Body weight : 0-13kg

Size/Approx. Age: Birth - 18 months

Installation position: Rearward facing

Restraint system: 5-point harness

Installation method: 3 point seat belt or Isofix + Anti Rotation Leg



Jané Koos iSize R1

  • Group 0+  /  i-Size  /  Height: 40 to 83 cm  /  Age: 0 up to 18 months
  • Installation: vehicles 3-point seat belt or optional Isofix Platform in the car.
  • Complies with Safety Regulations ECE R44/04 and the new R129 iSize. Classified as a “Universal” car seat.
  • Compatible with all Jané pushchairs and most pushchairs on the market with Multi or Maxi-Cosi fixing points when used with the optional Pro-fix to Multi Car Seat converters.
  • Koos iSize R1 complies with the R44/4 and the new R129 (iSize) European Safety Regulations. It can be installed with car seat belts (ECE R44/04). Suitable for infants from birth to 18 months approx. Group 0+ 0-13kg, or children with a height of between 40-83 cm.

  • Optional isofix base available: iPlatform, this is the quickest and safest installation system, as it prevents any installation errors that could affect safety.

  • Dual installation: isofix or seat belt.

  • The Profix connection system makes it compatible with the new iPlatform ISOFIX base and all Jané pushchairs.

  • Side impact protectors that are specially designed to absorb side impacts along with the adjustable headrest. Fitted with "memory foam" for maximum dissipation of loads in the event of a side impact.

  • Multi-functional buttons for easy carrying handle adjustment and travel system chassis release.

  • Adjustable headrest to 5 positions. The headrest adjusts to suit the baby's height, and can be adjusted while your baby is still in the seat.

  • Straps adjust and adapt automatically when you adjust the headrest to your baby's height.

  • 3-Point safety harness with one-pull adjustment.

  • Removable and washable upholstery.

  • Correct installation indicators.

  • The adjustable hood is breathable, repels water and protects from the sun UV50+.

  • iSize means more peace of mind. Not all current child car seats fit all car models securely. However, all iSize car seats do fit all cars equipped with the ISOFIX system. 

  • New 40-60 cm cushion insert, for newborns, which improves the resting angle and increases safety in the event of side impact. 



Koos iSize R1 Infant Car Seat

  1. Dimensions: 66 x 44 x 58 cm

  2. Weight: 3 kg


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