InfaSecure Achieve Premium Convertible Car Seat
From lower shoulder marker, up to upper shoulder marker (~newborn to 8 years).
Pros / Cons
Pros
- One seat covers birth to 8 years with extended rear-facing to about 30 months, avoiding the cost and handover risk of multiple restraints.
- Official CS9213-series shoulder markers (34 cm rearward-facing minimum, 39 cm turn-forward, 51 cm stop use) give clear, checkable stage transitions.
Cons
- The Amazon asking price (A$649) is above InfaSecure's own regular price (A$579), so the marketplace is not currently the cheapest route.
- The extended rear-facing stage tops out at about 30 months (39 cm middle marker), less extended-rear-facing headroom than some dedicated ERF convertibles.
Product Facts
- Seat Use
- Infant, Toddler
- Product page
- Open product page
- Price/Buy
- Check price at Amazon
Shortlist the Achieve Premium (CS9213) when you want one seat to carry a child from birth to about 8 years: it is a convertible that starts rearward facing — extended through the infant and toddler stages to roughly 30 months — then turns forward facing with a harness to the 51 cm upper marker, with a modular infant insert, Twist & Lift adjustment, Secur-air and Air Cocoon Technology, nine recline positions and Active Bamboo fabric. Fit is defined by shoulder marker, not age: 34 cm lower (rearward-facing minimum), 39 cm middle (turn forward), 51 cm upper (stop use). Two honest caveats: rearward facing ends at the 39 cm middle marker, shorter than dedicated extended-rear-facing seats, and this is a large 0-8 shell whose weight the official page does not state. Before buying, test the shell’s fit and recline clearance in your actual vehicle.