The kidfix ii xp sict is a highback booster seat that goes beyond legal safety standards the xp pad offers unique frontal impact protection for older children the secure guard patent pending ensures optimal lap belt positioning and the superior side impact protection leaves space for other passengers to travel in comfort this highly flexible seat offers the highest levels of safety from 4 to 12 years features reduced frontal impact xp pad diverting up to 30 source britax tests 2013