Monterey® 5 iST FixSafe™ i-Size is the first collaboration between juvenile brand Diono and design studio WhiteID to create the next generation of child car seat. 25% smaller than the average booster seat, Monterey® 5iST FixSafe™ i-Size transforms in seconds from a compact fold to a full-size booster, without compromising comfort or safety. This is thanks to Diono's groundbreaking Safe+® engineering which exceeds the latest European R129 standard. With Monterey 5iST FixSafe™ i-Size, there's no need for families to compromise on safety when they commute, carpool, or jump in a cab.