The narrowest 0–4 car seat in Australia, designed for safety and everyday convenience.

The Quattro Onyx proves that slim doesn’t mean compromise. At just 42cm across, it’s the narrowest child restraint with an in-built harness on the market, making it ideal for fitting three across or for use in smaller vehicles. Despite its compact size, it delivers outstanding protection with extended rearward facing up to 30 months, forward facing with harness to approximately 4 years, and advanced safety features including Secur-air™ and Air Cocoon Technology™ for superior crash energy absorption.

Everyday use is made easy with the Twist & Lift™ one-handed headrest and harness adjustment system, ISOFix compatibility, and quick-access belt path. Press-stud covers and harness pads remove in seconds for cleaning, while the premium Active Bamboo™ fabric provides breathable, moisture-wicking, and antimicrobial comfort to keep your child cool, dry, and fresh.

Features
•    Age Suitability: Newborn to 4 years* (approx.)
•    Extended Rearward Facing: Up to 30 months for longer protection
•    Forward Facing with Harness: From 12 months to 4 years* (approx.)
•    Premium Protection: By combining A.C.T. with Secur Air™, this seat creates a superior 180-degree protective air barrier that offers stronger cushioning and advanced side-impact protection for safer travel.
•    Built-in Anti-Rebound Design: Enhances stability and protection in rearward-facing mode, keeping your baby securely supported.
•    Compact & Versatile Fit: At just 42cm wide, it allows three seats to fit comfortably across the back seat of most vehicles, providing space without compromising comfort or safety.
•    Ultra-Compact Rearward Facing Depth: Compact seat depth provides extra space for front passengers, ensuring comfort even in smaller cars.
•    Effortless Adjustment: Twist & Lift™ lets you adjust the headrest and harness with one hand, ensuring a perfect fit as your child grows.
•    Recline Options: 9 recline positions for optimal comfort and correct fit
•    All-day Comfort: Breathable, antimicrobial, and moisture-wicking Active Bamboo™ covers
•   ISOFix Compatible: Quick, simple, and secure installation with built-in ISOFix connectors.
•    Effortless Cleaning: Designed with press-stud covers and pads that can be removed easily for quick, fuss-free cleaning.
•    Comfort Accessories: Shoulder pads and covers, infant insert, crotch buckle and harness pads included 
•    Warranty: 12 months (cover) and lifetime (shell)

Specifications

Dimensions

• Width (Base) - 34cm
• Width (Widest)  - 42cm
• Height (Headrest Down)  - 62cm
• Height (Headrest Up)  - 76cm
• Depth (Forward Facing)  - 50cm
• Depth (Rearward Facing)  - 58cm
• Weight  - 9.5kg

Approximate Shoulder Height Marker Locations

• Lower Marker (Must Rearward Face Under Marker) - 34cm
• Middle Marker (Turn to Forward Facing) – 39cm
• Upper Marker (Stop Use) – 43.5cm

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