Booster seats serve one primary purpose: to place the car’s seat belt over 3 strong points of a child’s body. A properly fitting booster will sit low over the hips and across the center of the shoulder to spread the possible force from a crash over these strong areas.
Transport Canada’s compliance testing program revealed that without this foam insert, the loads felt by the 12-month old crash test dummy slightly exceeded the allowable limit. Transport Canada and Diono are concerned that in the event of a collision, a Radian restraint system not equipped with the memory foam insert may transmit excessive loads to the child occupant which could cause injury.
**Discontinued** The Diono Radian worked well in three across and tight spaces. Visit https://csftl.org/diono-radian-3rxt-review/ for a review of a newer version of these seats.
