This convertible booster and car seat is designed to adjust for growing bodies so your child can grow up loving this amazing car seat. The Comfi Treo Secure has a high backrest and large side wings for extra added comfort. It is also scored highly by the independent experts of CREP. This seat is designed to be used by children between the ages of 6 months and 4 years and will adjust accordingly. It is also made from breathable fabric that allows your child to stay cool on even the longest journeys, so less complaints for Mum & Dad. The seat converts easily between a car and booster seat so you can use it however you choose.