When you drive a car, your baby is covered with a blanket in the baby seat, it kicks its legs for a moment and the blanket is already on the floor. We have now taken care of that with the new blanket with 3 openings for the baby seat belt. So you can be sure that the blanket stays where it should stay. And if the baby gets too warm, the pages are simply opened. The blanket openings are each 5cm wide. It fits in all common baby carriers with a three-point belt system.