UPDATE: The Maxi Cosi Rodi XR has been replaced with the Rodifix - Learn more here! Maxi Cosi is an international brand of carseats and strollers gaining more of a presence in North America in recent years. Recently its been flying off our shelves as customers are loving the Maxi car seats more than ever. The Maxi Cosi Rodi XR is a high back booster that converts to a backless booster. It is suggested for kids 30-100 pounds (40-100 in backless mode) and 34-57 inches tall (43-57 inches for backless mode). My favorite features include deep side head wings lined with energy absorbing EPP foam and width-adjustable side torso wings, also lined with energy absorbing foam. The bottom platform under the base can lowered and shifted back to adjust it from upright to reclined mode. A basic cup holder attaches to either side of the base. A standard lever at the top of the head rest allows for 8 height adjustments for the back. The Rodi is a well padded and comfortable. The basic width and height adjustments work well in small and midsize cars and the recline feature is fairly unique and can be handy. The cupholder is functional, but it does protrude quite a bit from the side. So if you're trying to put 2 car seats side by side you may have some trouble there. As for measurements, the base is about 18 inches wide on the outside of the arms. As a high back, it was top rated by the IIHS for fit, plus you gain the benefit of some side impact protection, a shoulder belt guide and properly adjusted head support in the event of a rear impact! Don't mix up the Maxi cosi rodi RX with the Maxi Cosi Rodi that is similar to the XR model, but lacks the adjustable torso wings, adjustable recline and a cupholder. Got more questions on the Maxi Cosi Rodi RX? Call us, We're here to help!