The ISOFIX system anchors the child seat directly to the car offering optimum protection; whilst britax?s unique ?pivot link? system further reduces the child?s forward movement within the seat in the event of an accident. The Duo Plus has a three position recline and added padding for extra side impact protection. In addition to the ISOFIX system, the Duo Plus can be secured using the vehicles 3-point seat belt. Features: Deep softly padded side wings for optimum side impact protection. Five-point, one pull safety harness. Three recline positions for a comfortable ride. Performance chest pads. A one-pull, height-adjustable headrest and harness moves up easily as your child grows. Harness retainers make it easy to take your child in and out of the seat. Quick removable, machine washable covers Group 1 car seat suitable for children from 9-18 kg (9mth-4yrs). Can be fitted either with your cars isofix points or a 3-pont seat belt.