The Emerge Astra allows the use of a six-point-harness from approximately 6-months through to a large 8-year-old. This gives superior protection to a wider range of children for longer. The harness buckle is height adjustable without removing the restraint from the vehicle. The Emerge' s Twist and Lift system allows one-handed adjustment of the headrest and harness from the front of the restraint. No re-threading straps, no uninstalling - you can get the perfect fit in seconds and it's never been easier. The Emerge also features twist-resistant straps, making your day a little less frustrating. Emerge Astra also features Air Cocoon Technology (A.C.T.). This enhances side impact protection through blow molding shell design, which dramatically reduces the impact forces during a crash. The Gradual Recline system is extremely easy to use, allowing unrestricted recline positions. Using the recline is simple without needing to remove the restraint from the vehicle. This means your child is always comfortable, regardless of age. The easy-care Active Fabric covers on the Emerge are hard wearing, cool and breathable. The machine-washable, press-stud covers can easily be removed for cleaning without having to uninstall the restraint, as can the shoulder pads.