The Jane Strata Infant Car Seat provides optimal safety & comfort. The Jane Strata has been designed with the well-being of your baby in mind. During the first few months in which a baby's correct posture is essential, the Strata has a more reclined position. After the third month Approx. your baby can start to sit up, the Jane Strata infant carrier has a patented system that allows your baby to always be in the correct position. From birth to 4 months the backrest lowers to create a 125 degree reclined position. After 4 months the backrest raises to create a 110 degree reclined position. The Jane Strata's headrest has double protection & also incorporates a 5-point harness which allows for a bigger fastening surface & therefore provides a higher level of safety when compared to the traditional 3 point harness which is found on most infant car seats.