Cybex Sirona Si i-Size 360° Car Seat with ISOFIX Base – STYLE Amber Brown

The Cybex Sirona Si i-Size car seat delivers premium safety and comfort for your child from birth through to 4.5 years old. Engineered with advanced protection technology, this rear-facing seat provides up to 50% better safety during frontal impacts and features Linear Side-impact Protection for enhanced crash protection. Its 360° ISOFIX base rotates smoothly with one hand, making it effortless to position your child safely whilst reducing strain on your back during every journey.

Key Safety Features

• Up to 50% higher safety levels in rear-facing position compared to forward-facing alternatives
• Linear Side-impact Protection reduces impact forces by up to 25%
• Padded energy-absorbing shell distributes impact forces effectively
• Rear-facing travel recommended up to 4.5 years (mandatory until 15 months)
• Meets UN R129/04 standards

Growth and Adaptability

The Cybex GrowTech system allows this car seat to evolve with your child. Suitable from birth to 4.5 years (height range 40-105cm, weight up to 20kg), it features three removable inlays that provide proper support at every stage. The Newborn insert and inlay (purchasable separately) offer extra head and body support for babies measuring 40-60cm. As your child grows, simply remove these components and keep the included Comfort inlay until they reach 85cm tall. An AGR-certified design provides an adjustable headrest, M-position, and 40% more recline range in both rear and forward-facing configurations.

Comfort and Convenience

• 360° one-handed rotation for easy side entry and exit
• Rigid crotch pad for simple, ergonomic boarding
• Magnetic belt holders keep safety belts neatly tucked away
• Advanced 3D mesh fabric provides airflow up to 6 times better than conventional materials
• All-round air ventilation keeps your child cool and dry year-round
• XXL integrated sun canopy with UPF50+ protection and breathable mesh window
• Easily detachable canopy for seasonal flexibility

Design and Materials

This STYLE version features sophisticated two-tone leather-look accents blended with breathable mesh, inspired by luxury car interiors. The two tone finish delivers a refined, premium aesthetic. All materials are rigorously screened for harmful substances including heavy metals, phthalates, and flame retardants, exceeding regulatory testing standards to ensure your child’s safety and wellbeing.

Technical Specifications

• Dimensions: L 56cm / W 45cm / H 55cm
• Weight: 7.3kg
• Suitable age: Approximately 3 months to 4.5 years (from birth with newborn inlay accessory sold separately)
• Child height range: 61-105cm (40-60cm with newborn inlay)
• Maximum child weight: 20kg
• Includes Base S for straightforward, ready-to-use setup
• Complies with UN R129/04 regulations