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Cybex Sirona S2 i-Size

Cybex Sirona S2 i-Size

Regular price £299.95
Regular price Sale price £299.95
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The CYBEX Sirona S2 i-Size Car Seat in Deep Black allows you to say goodbye to hassle and back strain at the start of your journey and features a genius one-hand 360-degree rotation mechanism for a fast entry and exit. It’s your new secret weapon for easy and comfortable boarding.

The Sirona S2 i-Size lets your little one sit rear-facing to improve safety in the event of a head-on collision. If you make the switch to forward-facing, Energy Reduction Technology makes the journey safer. The headrest and harness system are designed to reduce the energy of impact forces, so whichever travelling direction you choose you can be rest assured your child is protected.


  • Quick change to a sleeping position
  • Grows with your child up to 4 years old
  • Comfortable travel in the safest positions
  • Divers impact forces away from your child
  • Easier to get your child in + out of the seat
  • Reduces the force of a side-impact collision
  • Quick + easy to get your little one on board
  • Reduces impact forces in the forward-facing position
  • Straightforward installation + anchorage in your vehicle
  • Height-adjustable headrest has 12 settings for a customised fit
  • Integrated L.S.P. System increases safety in the event of a side-impact collision
  • Energy Reduction Technology improves safety performance during front-facing travel
  • 360-degree rotation mechanism takes the back strain out of getting your little one on board
  • Impact forces are transmitted directly into the car seat via the harness system, where they are partially dissipated by energy-absorbing materials


  • UN R129/03
  • Product weight: 13.9kg
  • Compatible with SensorSafe
  • Measurements: L71 x W44 x H68cm
  • 61-105cm (from 45cm with newborn inlay)
  • Max. 18kg; from approx. 3 months up to 4 years (From birth with newborn inlay*)
  • *Newborn inlay sold separately


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About Cybex

Cybex is a leader in child safety and is recognized for their urban-friendly car seats, pushchairs, and carriers. Models such as the Priam, Mios, Anoris T, and Cloud Z are developed with the Cybex D.S.F. Innovation Principle – a unique combination of outstanding design, smart functions, and unbeatable safety and quality. Let Cybex make life easier for your modern family.

Payment Options

This payment plan is an ideal option for customers who want to make large purchases with flexible payment terms. It requires a 20% deposit at the time of purchase and the remaining balance can be paid off in instalments anytime and in any amount of your choosing. This plan offers you the freedom to pay the balance in smaller, more manageable amounts. It is also beneficial for those who want to spread out their payments over time, our payment plan allows you to pay the balance in whatever timeframe you choose.

Chat With Us

At Bundle Baby, we understand that choosing the right products for your needs can be a challenging task. That's why we are dedicated to making sure you love every item you purchase from us. If you need any assistance, please don't hesitate to reach out to us via email at We are here to help!

Price Match

If you find a lower price on the same product somewhere else, don't worry - let us know! Email us at and we will do our best to match the price. We want to make sure that you get the best deals on the products you love.

More from Cybex

At Bundle Baby, we are passionate about Cybex! Check out our extensive selection of products from the brand and find something that you adore.

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