Britax Advansafix i-Size Car Seat - Cool Flow - Blue

The safety of every child is very important to Britax and is approved to the new i-size regulation


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Delivery Approx 7-10 Working Days

The safety of every child is very important to Britax and is approved to the new i-size regulation. Advansafix i-size grows easily and comfortably with your child. Thanks to the flip and grow function, You can switch from the integrated harness to the car’s 3 point belt, with the proven technologies of XP pad and secure guard holds the lap belt in the optimal position over the pelvic bones, reducing the risk of abdominal injuries. Plus, the adjustable SICT and V shaped headrest provide protection in the event of a side impact


  • Suitable from 15 months to 12 years approx
  • Weight capacity up to 36kg max
  • 5 point harness 21kg max
  • Forward facing 76cm - 150cm
  • Fitting
  • Isofix and top tether 76cm - 102cm
  • Isofix and 3 point seat belt 100cm - 150cm or 3 point seat belt 100cm - 150cm


Easy recline

  • Easy recline is suitable for all ages and allows you to adjust the seat into comfortable forward recline positions, even when your child is in the seat and without having to re-adjust the top tether. Total convenience for both the parent and the child
Advanced side impact protection SICT
  • The SICT offers superior protection to your child in the event of a side collision. It reduces impact forces by minimising the distance between the car and the car seat and deforms to absorb the energy before it reaches your little one. To benefit from the protection, simply adjust on the side of the car seat closest to the door
V shaped headrest
  • Specially designed to control the movement of your child’s head, our V shaped headrest ensures optimal protection in the event of a side collision while providing ultimate comfort at the same time. Plus, the headrest and harness can easily be adjusted from the front of the seat to suit your child’s height
Soft neoprene performance chest pads
  • Soft neoprene performance chest pads fit comfortably on your child’s chest. They help reduce your child’s movement in the event of a collision, and add even greater comfort to the 5 point harness. Plus, they can be easily removed for washing without disturbing the harness
5 point harness 
  • We believe a 5 point harness is the safest way to secure your child in a car seat because it keeps your child safe and tight in the seat’s protective shell. In the event of a collision, the harness distributes the forces of the impact across 5 points, two at the shoulders, two at the hips and one where the harness buckles between the legs. This helps to protect your child from all directions of impact
Flip and grow
  • When your child reaches 15kg and up to a maximum of 21kg, you must change from the integrated 5 point harness to the car’s 3 point seat belt to secure your child in the seat. Thanks to the flip and grow function that’s now possible in a few simple steps. Simply adjust the headrest and stow the harness in the backrest so it won’t get lost. Then, switch the flip and grow adjustment plate so the secure guard is above the seat and you’re ready to go
XP pad
  • Despite good planning and careful driving, you can never prepare for a collision. To protect your child's sensitive neck area in case of a frontal impact, Britax has developed a shock absorbing foam pad. It prevents the impact of your child's chin on their chest, absorbing up to 30% of the energy. A jerky forward head movement is reduced and the neck is protected. At the same time it provides additional padding around the edges of the seat belt
Secure guard
  • The secure guard helps to protect your child’s delicate abdominal area by adding an extra 4th contact point to the 3 point seat belt. By keeping the lap belt in an optimal position over your child’s pelvic bones secure guard helps reduce abdominal forces in the event of a frontal collision by up to 35 %, and at the same time allows your child freedom of movement during the journey
Highback booster protection
  • The highback boosters protect your child in 3 ways: (1) The seat shell provides head to hip protection for your child, especially in the event of a side impact, (2) The upper and lower belt guides provide correct positioning of the seat belt, (3) The padded headrest provides safety and comfort for your child’s head and neck
Top tether
  • The top tether minimises the rotation of the car seat and this reduces possible injuries in the head and neck area in the event of a collision. Due to its twin anchorage points, the v shaped top tether offers even greater stability and security for your child than a seat with conventional tethers
Pivot link isofix system
  • In case of an impact, our patented Pivot link isofix system directs the force first downward (1), into the vehicle seat, and then forward (2), more gently greatly reducing the risk of head and neck injury for your child
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