Britax Römer HI-LINER i-Size Car Seat 100-150cm

£119.88 Regular price £199.00
Tax included. Shipping calculated at checkout.
by Britax
In stock
Delivery time: 10-12 working days

This product will be delivered to you within 10-12 working days*.

As soon as your order leaves our warehouse, we will share tracking details.

*This is the average delivery time frame for this product.

Delivery cost

We offer a free delivery service for all orders over £50 to
mainland UK addresses*. If your address falls outside of this area there may be
additional carriage fees. This will be displayed clearly on the checkout/basket

*Except Two-Man Delivery. Unfortunately due to rising, costs
some larger items by certain brands may incur extra carriage charges that we
must pass on to you. Most of these are White Glove Deliveries where the
delivery drivers will deliver to a specific room of your choice.

For more information please call us on 01902 490 211. 

Please note that if your order falls below the £50 threshold
your order will have a £5.95 delivery charge.

Read more about Ordering and Deliveries

Shipping details

We will keep you informed of the status of
your order at every stage. If you haven’t received any emails please check your
spam folder as they can sometimes fall in there.

Delivery zone

At the minute we are delivering only to the
postcodes within the UK Mainland which means we do not deliver to:

  • Ireland
  • Northern Ireland
  • Scottish Highlands 
  • Chanel Islands
  • Isle of Man
  • Isle of Arran and Millport
  • Orkney Islands, Golspie, Halkirk, Kirkwall,
    Dunbeath, Helmsdale, Brora
  • Isle of Wight
  • Isles of Scilly
  • Shetland Islands
  • Isle of Anglesey

Please note: If we
receive an order with a delivery address in the zones above, we won't be able
to process the order and the refund will be issued immediately.

Read more about Ordering and Deliveries

Return policy

Return Timeframe

We operate a 14-day returns policy, meaning you have 14 days from the receipt of your item to request a return.

Eligibility for Return

To qualify for a return, your item must be in the same condition as when you received it, unworn or unused, with tags, and in its original packaging. You will also need to provide the receipt or proof of purchase.

To initiate a return, please contact us at and attach pictures of the item from the front, side, and back, along with images of the original packaging. If your return is accepted, we will provide you with a dedicated warehouse address for your return, along with instructions on how and where to send your parcel at your own expense. Returns sent to us without prior authorisation will not be accepted.

If you have any questions about returns, you can always reach out to us at

Click Here to read full Return policy

The Britax Römer HI-LINER i-Size Car Seat is a reliable and easy-to-use highback booster seat designed and manufactured in Germany. It meets the highest standards of comfort and safety for children aged 100-150cm. The seat is developed according to the new i-Size standard and is approved according to the latest R129 regulations. It offers reliable and future-required i-Size safety for your child. With its optimized seating area and generously padded soft fabric covers, the HI-LINER provides additional comfort, especially on long journeys. Its slim design allows for up to three seats to be installed in the back seating area of various cars. The installation process is made simple and safe by the ISOFIX system, and helpful headrest markings ensure the correct setting every time. Manufacturing the majority of car seats in Germany, Britax Römer prioritizes production quality and sustainability by minimizing transport distances and using compact recycled carton packaging.

  • i-Size safety compliant: Developed and approved according to the latest i-Size regulations, the HI-LINER ensures reliable and future-required safety for your child.
  • Enhanced comfort: The optimized seating area and generously padded soft fabric covers provide additional comfort, making long journeys more enjoyable for your child.
  • Practical installation: The slim design enables the installation of up to three seats in the back seating area of various cars, and the ISOFIX system ensures a simple and safe installation process.
  • Adjustable headrest: The ergonomic and easily adjustable headrest offers comfort for older children, and helpful markings guide parents to find the correct headrest height every time.
  • Sustainability: Britax Römer's manufacturing in Germany and the use of compact recycled carton packaging contribute to sustainability efforts.
  • Removable and washable cover: The machine washable seat cover can be easily removed, making cleaning quick and hassle-free.


  • Weight: 6.5 kg
  • Dimensions: H 64-83 x W 53 x D 41 cm
  • Suitable for children from 100 to 150 cm tall

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