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Britax Römer advansafix iii sict highback booster car seat - moonlight blue

Price £157.50
RRP £250.00
Out of Stock
Colour: moonlight blue

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Britax Römer advansafix iii sict highback booster car seat is rated 4.3 out of 5 by 22.
Rated 5 out of 5 by from My Boy loves this seat. Bought this seat and my boy now loves travelling in our car. He can see all around and has lots of space while being soundly secured.
Date published: 2019-02-12
Rated 5 out of 5 by from Brought for our four year old grandson Very pleased with our purchase and the service was excellent
Date published: 2018-10-11
Rated 5 out of 5 by from Fab seat I bought this seat ready for my twins. I already have one so know it is good. But the seat fitting service in Chelmsford was fab they were so helpful in trying it all in the car. Nothing was too much trouble.
Date published: 2018-09-28
Rated 5 out of 5 by from Great car seat I’m happy that I bought this car seat and I really like it
Date published: 2018-08-18
Rated 5 out of 5 by from Very good product I bought this product in cosmos black. I'm very satisfied with it. Thanks to the isofix system the seat is very stable and tight to the car's seats. My kid feels quiet comfortable in the seat. Overall me and my family are satisfied with our choice for a car seat. The delivery was very fast without any problems! I will use mothercare again when I need something!!!
Date published: 2018-06-27
Rated 5 out of 5 by from Great Car Seat We bought this car seat as there were only two stage 3 Britax seats that fitted both of our cars if we needed to transfer it, so we opted for this one because we liked the added tethered safety feature alongside the Isofix fitting. Delivery was very quick from Mothercare too. We read the fitting instructions and watched the video too, it all seemed very easy.....well, not if you have Alfa Romeo Giulietta. The Isofix brackets on the Alfa are hidden behind very tiny zips which barely open and are packed with the thick seat padding making it impossible to get to them. The guide brackets which are supplied with the car seat are hard to fit through the tiny zip holes and one of them doesn't fit on the bracket properly so it sticks out. We managed to get one side of Isofix to clamp on but not the other, it was becoming impossible each time we tried due to the clamp mechanism on the actual car seat retracting back in on itself. Thinking there was an issue with the car seat we tried it in our other car which has the plastic mounted guides already manufactured into the back seats and we had it fitted in seconds. Why Alfa Romeo don't do this is beyond me. Anyway, we eventually got the car seat fitted after nearly two hours of trying and it won't be coming out again. The car seat looks good and our DD loves her new seat and feels really grown up as she is now using the actual seat belt. It doesn't seem as bulky as our previous Britax Eclipse seat so there's more room in the back. So if you're putting this in an Alfa Romeo please allow yourself extra time to fit and a lot of patience, it will be worth it.
Date published: 2018-05-14
Rated 5 out of 5 by from Quality seat I purchased this seat for my nearly three year old. It is a good quality solid seat and I wouldn’t hesitate to recommend. The only slight niggle is I find the buckle a bit more fiddly than on the other seats I have
Date published: 2018-02-22
Rated 5 out of 5 by from car seat we bought a car seat online. delivery was quick and the Brittax Romer car seat is a good fit for the car.
Date published: 2017-11-15
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Questions & Answers

Do Britax do an extended rear facing car seat? My son is 102cm tall, almost 18kg so is out growing his current car seat but I want to keep him rear facing. Thanks

Asked by: Angela
You could try the Britax Maxway or Two-Way Elite. There are lots of choices for rear-facing to 25kg. We use an axkid minikid.
Answered by: jackieq27
Date published: 2019-02-20

Can this be both rear and forward facing 

Asked by: Martin
Thank you for your query This car seat is forward facing only We hope this helps
Answered by: Lisa
Date published: 2018-09-24

Does this have a cup holder as part of it?

Asked by: Becky
Hello Becky, Thank you for your enquiry. We have not been advised this car seat has a cup holder. I hope this helps.
Answered by: HannahS
Date published: 2017-09-28

Does this fit on a Volks Up? And can it be used in a car without isofix?

Asked by: Caroline
Thanks for your query. This is compatible with the VW UP 2011+ models Source, For group 1 this needs to be installed with the Isofix. Regards,
Answered by: paulsu
Date published: 2018-07-02

Hi is this fit in Mercedes c class car? 

Asked by: Rupinder25
Thanks for your query. Please click this link for the fitting list. Regards,
Answered by: paulsu
Date published: 2018-08-28

Will it also fit a Audi Q2

Asked by: Jane
Hello, Thank you for your query. Unfortunately, we do not hold the compatibility of this item on the system I’m afraid. I would advise to contact your local Mothercare store and request to speak to the travel team as they are product trained and should be able to advise further. Apologies that I could not be of more assistance at this time, however I hope this information is of use.
Answered by: Kirsty
Date published: 2018-05-31

Is it compatible with the Toyota Avensis 2011 year?

Asked by: Adriana
Thanks for your query. Please click this link for the Fitting list. Regards,
Answered by: paulsu
Date published: 2018-03-15

Do you have to use the top teather when fitting the seat?

Asked by: MrsD
Hello MrsD, Thank you for your enquiry. We have car seat advisers in our stores trained to the highest standards in all aspects of car seat safety. They can talk you through which car seat will suit your individual needs and show you how to fit it correctly using a demonstration car seat (these have been installed in our leading stores). In some stores we can try a seat in your car and even double check one you've fitted, providing you with the ultimate peace of mind. I hope this helps.
Answered by: HannahS
Date published: 2018-06-11
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maternity fitting and sizing guide

We fit our garments on mums to be so that we fully understand her needs during pregnancy, making sure the clothes look good and are comfortable.

Check your measurements against our size chart to ensure you are buying the right size.

Remember that we are all different shapes & sizes and sometimes we can sit in the middle of a size. Trying a size above or below can help achieve the most comfortable fit for you.

Our well designed maternity clothes are versatile and often suitable for post-pregnancy.

  8 10 12 14 16 18 20
European size 36 38 40 42 44 46 48
dual size guide S M L XL
full bust (pre-pregnancy) 82 87 92 97 102 107 112
full bust 86 91 96 101 106 111 116
dual size bust 86-91 96-101 106-113 111-116
waist (pre-pregnancy) 64.5 69.5 74.5 79.5 84.5 89.5 94.5
Bump circumference (early stages - 3rd trimester) 87 - 96 96 - 101 97 - 106 102 - 111 107 - 116 112 - 121 117 - 126
Low hip (pre-pregnancy) 93 98 103 108 113 118 123
dual size hip 93 - 98 103 - 108 113 - 118 118 - 123
thigh 52 55 57.5 61 64 67 70

mothercare bra band size

inches 32 34 36 38 40 42 44 46
cm 70 75 80 85 90 95 100 105

mamalicious size guide

  EUR XS / UK 6 EUR S / UK 8 EUR M / UK 10 EUR L / UK 12 EUR XL / UK 14
Bust 86 90 94 98 102
Under Bust 68-72 73-77 78-82 83-87 88-92
Hip 91 95 99 103 107
  See the Full Size Guide

sizing guide for babies & children

So no matter if you are looking to buy newborn baby clothes, sleepsuits or nightwear you can ensure you buy the correct baby clothing based on the baby's weight or height. If you are looking to measure your babies feet, check out the mothercare shoe sizing guide.

Please refer to the guide below to help you find the size that is right for your baby or child.

premature / newborn sizing

Size 3lb Premature 4lb Premature Tiny Baby New baby up to 1 months 1 - 3 months 3 - 6 months 6 - 9 months 9-12 months
Height (cm) - - 50 56 62 68 74 80
Weight (kgs) 1.4 1.8 2.3 3.4 4.5 6.5 8 9 -
Weight (lbs) 3 4 5 7.5 10 14.5 17.5 20 -
Hips (cm) 3 4 5 7.5 10 14.5 17.5 20 -

girls & boys clothing sizing

Size 12 - 18 months 18 - 24 months 2 - 3 years 3 - 4 years 4 - 5 years  5 - 6 years 6 - 7 years 7 - 8 years
Height (cm) 86  92 98 104 110 116 122 128
Chest (cm) 50.5 53 55.5 57 58.5 60 62.3 64.5
Waist (cm) 51 52 53.5 54 54.5 55 57 59
--> See the Full Size Guide

footwear sizing guide

The Mothercare Baby Shoe Sizing Guide is a handy print out that will allow you to position your little one, (if they stop wriggling!) onto the foot outline, giving you both UK and Euro sizes. With a 3 point fit test and points to ensure you are getting an accurate foot measurement, the Mothercare shoe sizing guide is a must.

Mothercare also have a handy baby & kids clothing size guide, so be sure to check the chart before making any baby clothes purchases.

See the Full Size Guide