In what way does the SIP+ improve the safety of the iZi Plus X1?

SIP+ is an additional safety feature that is placed on the side of the BeSafe child car seat. It is constructed to absorb energy and reduces the load on the child’s neck and head in two ways: First, SIP+ reduces the distance between the seat and the door, thus shortening the movement in a side impact, resulting in less force on the child. Second, SIP+ functions like a car’s crumple zone and absorbs energy.