Diono Radian 3QXT+ Luxury 3 Across All-in-One Car SeatThe Radian 3QXT+ model is an elite standard convertible car seat. It's designed with multiple layers of durable material, a steel rebound bar, and tested in the most severe car crashes for optimal safety. Its compact structure enables three seats to be aligned in a row, with guaranteed comfort. It also includes extra newborn protective features to keep your baby in a comfortable flat back position. It adapts as your child grows from birth to booster,