
Details & specifications
Description
The Liberty Onyx is a Convertible Booster Seat designed to protect children from approximately 6 months to 8 years, offering extended safety and long-lasting use through every stage. It begins as a harnessed seat with the built-in six-point harness and later converts into a Booster Seat using the vehicle lap-sash belt once your child reaches the middle height marker. Secur-air™ and Air Cocoon Technology™ (A.C.T.) work together to dramatically reduce crash energy to the head and body, helping protect your child in an accident, while the strong blow-moulded shell provides enhanced structural durability. With one of the tallest exit markers in Australia (57cm seated shoulder height), Liberty offers extended security for older, taller children.
Designed for everyday family use, Liberty Onyx includes an adjustable headrest for a perfect fit as your child grows, and Active Fabric™ Onyx covers that are cool, breathable, and machine-washable for effortless cleaning. The seat’s foldable shell allows easy storage and transport, making it a practical solution for families who need flexibility without compromise. Durable, adaptable, and built to last, Liberty Onyx is a smart and stylish choice for growing families.
Features
- Age Suitability: Approximately 6 months to 8 years*
- Harness to Booster: Supports harnessed travel from approximately 6 months to 4 years before converting to a high-back booster.
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Extra-Tall Booster Design: Supports children up to a 57 cm seated shoulder height.
- Advanced Impact Protection: Secur-Air™ and Air Cocoon Technology™ (A.C.T.) work together to create a 180-degree protective air barrier that helps absorb and manage crash forces while enhancing side-impact protection.
- Adjustable Headrest: Provides a secure and comfortable fit as your child grows.
- All-Day Comfort: Breathable, durable Active Fabric™ covers help keep your child comfortable on every journey.
- Foldable Design: Easy to transport, transfer between vehicles or store.
- Easy Installation: Simple belt-path installation using your vehicle's lap-sash seatbelt and top tether.
- Effortless Cleaning: Press-stud covers and pads remove easily for quick, fuss-free cleaning.
- Comfort Accessories: Includes an infant insert, shoulder pads and crotch buckle pad.
- Warranty: Lifetime shell warranty and 12-month cover warranty
Specifications
Will it fit my car?
Installation & manuals (PDF)
Need help fitting your child restraint? Find a child restraint fitter near you.
Shipping & returns
Free delivery Australia-wide on orders over $199. Easy 30-day change of mind returns. Click & Collect from Kingsgrove, NSW.
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FAQs
Common questions
How long can bub stay rear-facing in this seat?
Until roughly 30 months, depending on your child's size.
Will it fit three-across in my car?
See the fit guide above, or ask our fitting team.
Is the cover machine-washable?
Yes, on a gentle cold cycle. Air dry only.
ISOFix or seatbelt — which should I use?
Both are equally safe when installed correctly. Use whichever your car supports and you find easier to fit.
Reviews
What parents say
Quattro Onyx Convertible Car Seat
"Highly recommended - Amazing seat slim line and super easy to install."
Winslow Cot
"The quality really stands out, and it feels sturdy and well made."
Pilot Convertible Car Seat
"It was a breeze to install and fits really well into my car."
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