What defines sewn-on latch plates?

Sewn-on latch plates are defined by the visible stitching that prevents them from sliding along the webbing. This feature ensures that the latch plates remain securely in place, providing stable and consistent anchoring points for the car seat’s harness system. The stitching adds an element of safety by preventing the latch plate from shifting during use, which could compromise the effectiveness of the restraint system.

Having visible stitching is critical because it demonstrates that the latch plate is securely attached to the seat's webbing, which is a key aspect of child passenger safety. The design of sewn-on latch plates is specifically intended to create a reliable connection that adheres to safety standards, making it clear why this characteristic is central to their definition.

Other options such as the ability to slide, adjust in size, or being limited to infant seats do not accurately represent the functionality or purpose of sewn-on latch plates in car seat designs.