Cybex Sirona Si i-Size 360° Car Seat with ISOFIX Base – COMFORT Cozy Beige

The Cybex Sirona Si i-Size car seat, delivers exceptional safety and comfort for your child from birth through to 4.5 years old. Engineered with rear-facing travel as the priority, this innovative seat provides up to 50% better protection compared to forward-facing alternatives, making it an intelligent choice for keeping your little one secure throughout their early years.

Safety Features

Protection is at the heart of the Sirona Si’s design. The padded energy-absorbing shell acts as a protective shield, expertly distributing impact forces to keep your child safe. Linear Side-impact Protection technology reduces side-impact forces by up to 25%, channelling energy through the seat’s shell and headrest. This three-tier safety system integrates seamlessly into the seat structure, folding out during setup and tucking away neatly when space is limited.

The seat meets UN R129/04 certification standards and is AGR-certified for superior ergonomics, ensuring your child travels safely and comfortably on every journey.

Growing with Your Child

Cybex GrowTech allows the Sirona Si to adapt as your child develops. Three cleverly designed, removable inlays support different growth stages. From birth, the included Comfort inlay provides cushioning and support. As your baby grows, additional Newborn insert and inlay accessories (sold separately) are available for infants measuring 40 to 60cm. The Comfort inlay continues to support your child until they reach 85cm in height. This adaptability means the seat works from approximately 3 months through to 4.5 years (child height: 61 to 105cm, maximum weight: 20kg), offering exceptional value and longevity.

Effortless Loading and Unloading

The 360° one-handed rotation feature significantly reduces strain on parents’ backs when placing your child in or out of the car from the side. Simply turn the seat towards the car door for smooth, ergonomic access. The rigid crotch pad ensures quick and easy boarding for both parent and child. Integrated magnetic belt holders keep the seatbelt tongues neatly secured to the seat’s sides, creating an orderly, calm entry experience and streamlining every transition.

Comfort and Breathability

Year-round comfort is assured through innovative all-round air ventilation. The seat’s 3D mesh-style fabric boosts airflow up to six times compared to conventional materials, whilst moisture-resistant fabrics and ventilated hard parts maintain optimal breathability. This advanced climate control keeps your child cool and dry throughout every season.

The XXL integrated sun canopy features UPF50+ protection, shielding your child from harmful rays and reducing glare for safer, more restful naps.

Quality and Safety Standards

Cybex prioritises your child’s wellbeing by screening all products for harmful substances including heavy metals, phthalates, and flame retardants. Testing is conducted by internal laboratories and exceeds regulatory standards across all markets served.

Specifications

• Product dimensions: 56cm (L) × 45cm (W) × 55cm (H)
• Product weight: 7.3kg
• Suitable from approximately 3 months to 4.5 years
• Child height range: 61 to 105cm (40 to 60cm with newborn inlay)
• Maximum child weight: 20kg
• Certification: UN R129/04
• ISOFIX Base S included for straightforward setup