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Cybex Sirona T iSize Car Seat

CYBEX Platinum Car Seat

Sirona T i-Size

Travelling in Safety and Comfort

Cybex Sirona T iSize in Sepia Black


Mirage Grey

Sepia Black

Plus Colours

Mirage Grey Plus

Sepia Black Plus

Peach Pink Plus

Nautical Blue Plus

Cozy Beige Plus

Rear-Facing Safety

The ultimate travel companion for you and your little one. The new Sirona T i-Size is the successor to the award-winning Sirona Z2 i-Size, delivering superior quality, advanced functionality and ground-breaking design. Ensuring your child’s safety and comfort.​


Cybex Sirona T iSize Car Seat

50% Higher Safety

A rear-facing position provides supreme protection from birth up to four years old. In fact, it is 50% safer than forward-facing travel.

Cybex Sirona T iSize Car Seat

Easy On and Off-Boarding

360° rotation lets you swivel the Sirona T i-Size on the Base T to face the car door – reducing stress and back strain.

Cybex Sirona T iSize Car Seat

Optimal Breathability

Even in hot weather, your child can indulge in all-round air ventilation. Choose the Plus version for extra mesh fabric – increasing breathability sixfold!

Cybex Sirona T iSize Sun Canopy

All-New Sun Protection

Enjoy a ride on a sunny day with confidence. A sun canopy screens out harmful rays and keeps your baby's skin protected.

Cybex Sirona T iSize Car Seat LSP

25% Less Impact

As well as the superior protection from the front impacts delivered by the rear-facing position, the Sirona T iSize's Linear Side Impact Protection and energy absorbing shell also reduce side collision force by up to 25%.

Cybex Sirona T iSize

Comfort on the Go

Comfort is a precise art. Whether it is rear, door or forward-facing, the Sirona T iSize features five indulgent recline settings that can be set with one hand.

Cybex Sirona T iSize

Grows with your Child

From newborn to child. A 12-position height-adjustable headrest provides a precision fit over 4 years of amazing growth.

Cybex Sirona T Car Seat Newborn Inlay

The Best Start

If you want to use the Sirona T iSize right from the start, a newborn inlay creates the ideal ergonomical lying position for your new arrival. So you can rest assured they are properly protected.

Cybex Sirona T iSize

It is all in the Details

Every detail is thought through to perfection - down to the ingenious magnets helping keep the harness out of the way during on-boarding.


UN R129/03



40 cm - 105 cm


Max. 18 kg


From birth up to 4 years

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