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Maxi Cosi Onyx Group 1/2/3 Car Seat - GraphiteMaxi Cosi Onyx Group 1/2/3 Car Seat - Graphite
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Maxi Cosi

Maxi Cosi Onyx Group 1/2/3 Car Seat - GraphiteOn offer

R61745

229.99£229.99

Please agree to the Terms & Conditions below to purchase

  • Free Delivery
  • 365 Day Returns : Return up to Sunday 20th June 2027.
  • Interest-free installments from £76.66 with PayPal or Klarna

Next Day Delivery Available

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Order now for delivery on Tuesday 23rd June
   

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Boori operate a deposit system: At checkout you will be asked to pay a deposit, with the remaining balance to be paid directly to Boori within 2 working days. Boori will contact you for this payment.

Your purchase of BOORI product(s) is subject to an agreement between you and BOORI UK LIMITED. Please click here to view the full Boori Terms & Conditions.

Maxi Cosi Onyx Group 1/2/3 Car Seat - Graphite

Onyx - provides your growing child (76 – 150 cm) with the very best protection whenever you’re on the road. With integrated G-CELL panels and a 5-point safety harness, they’re fully protected in the event of forward as well as side collisions. And thanks to its five comfortable recline positions, your little one has the cosiest seat in the car every time you hit the road.

Safety - Onyx is designed for safe journeys together. It meets the highest and latest i-Size safety standards and keeps your child protected throughout childhood. Its integrated G-CELL panels provide the very best protection in the event of side collisions, while the 5-point safety harness offers the most secure fit as they grow.

Ease of use - Each day is made easier with Onyx. Its 5-point safety harness can be used up to 4 years (105 cm), and after that, you can store the harness away in the seat to convert the car seat to booster mode. Your little one can then be buckled up quickly and easily using the car’s seat belt.

Age range - Onyx is the multi-age car seat that’s designed to grow with your child. It can be used from 15 months all the way up to 12 years old (76 – 150 cm). It adapts to their changing needs as they grow thanks to its height adjustable headrest and high back booster design.

Comfort - Your child can make use of five recline positions that keep them comfortable whenever using Onyx in harness mode. Whether they’re taking a nap on a long journey watching the world go by outside the window, Onyx ensures they remain cosy and comfortable in their seat.

Features: 

  • Onyx is designed to grow with your child, offering lasting functionality from 15 months up to 12 years old (76 – 150 cm). 
  • Integrated ISOFIX connectors ensure your car seat base is safely locked into your car. 
  • Meets the highest and latest i-Size safety standards (R129/03), offering maximum safety for your child.
  • Integrated technology to provide your child with unrivalled safety, spreading the impact and reducing injuries in the event of a side collision.
  • 5-point safety harness for maximum protection in the event of forward collisions.
  • Onyx features a memory foam headrest for added safety and enhanced protection in the event of accidents.
  • With ten adjustable headrest height positions and a fully adjustable harness, it’s easy to ensure the comfort and safety of your little one as they grow.
  • With no bulky armrests to get in the way, buckling up is quick and hassle-free. So easy, independent children can buckle-up themselves.
  • Does your car seat cover need a bit of freshening up? Wipe it down with a damp cloth, or put it in the washing machine up to 30°C.
  • With five recline positions, your child will always be comfortable on the go, whether they’re sitting up window-gazing or laid back and sleeping.
  • Compatible with our premium, non-dyed car seat cover made of breathable organic cotton, that absorbs moisture quicker and provides an added layer of cushioning.
  • Forward-facing car seat, letting you easily interact with your child.
  • Made with 100% recycled fabric by re-using plastic bottles, because we’re committed to designing sustainable products that offer comfort to your child.

Delivery Options & Information

The below delivery options and delivery times only apply once your order is in stock with us. Your order may be on a lead time or pre-order so once the stock is with us, these are your delivery options and timeframes.

Standard Delivery

  • FREE delivery on orders over £50*
  • Orders under £50: £4.99 delivery charge*

*These charges are location dependant, please see our Delivery Info Page for more information

Express Delivery

Our Express Delivery Service is available for £5.99 and can be selected at checkout on eligible products.

  • Available on orders both over and under £50
  • Delivered on the next working day once your order is ready for dispatch
  • Order before 3:00pm for same-day dispatch on in-stock items

Product Availability & Lead Times

The delivery estimate displayed on each product page shows when your item is expected to arrive into stock. All lead times provided are estimates and are based on working days (Monday–Friday, excluding public holidays).

In Stock

Items showing as available for Next Day Delivery are held in our warehouse and can be dispatched the same day when ordered before 3:00pm (Monday to Friday) if you choose the Express service at checkout.

Direct Delivery

Some products are shipped directly from the manufacturer. The estimated delivery timescale will be displayed on the product page.

Supplier Stock Lead Times

Some items are available from our suppliers and are ordered specifically for you. Delivery times vary by product and are clearly displayed on the product page.

Pre-Order Items

Pre-order products can be reserved before they arrive back in stock.

Where an estimated availability date is provided, this is supplied by the manufacturer and may be subject to change. If there are any significant delays, our team will contact you with an update.

Orders Containing Multiple Items

If your order contains items with different lead times, your order will normally be dispatched together once all items are available. This means your estimate delivery date for the full order will be based on the longest lead time in your basket. 

If you would prefer available items to be sent sooner, please contact our customer service team who can arrange this for you.

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