The InfaSecure Vario II Astra is a Booster Seat for children between 4 and 8-years-old. It uses an adult lap & sash belt, and features a top tether for simple installation. The Vario II Astra also features Air Cocoon Technology™ (A.C.T.). This enhances side impact protection through blow moulding design, which dramatically reduces the impact forces during a crash. The blow moulded shell greatly reduces the forces on a child’s head and body in a side-impact accident. The easy-care Active Fabric™ covers on the Vario II Astra are hard wearing, cool and breathable.