backplattan

Backplattan, or back plate, is a rigid protective plate worn on the back as part of ballistic body armor or as a component of historical plate armor. In modern use, backplates are paired with front plates to form a hard-plate vest, inserted into a plate carrier to shield the wearer’s back from ballistic and trauma impacts. They are designed to help absorb and distribute energy from projectiles and fragments, reducing the risk of penetration and blunt force injury.

In contemporary armor, backplates come in various sizes and shapes to balance protection with mobility. Common materials include steel, ceramic composites, and ultra-high-molecular-weight polyethylene (UHMWPE), or hybrids of these. Steel plates offer durability and cost advantages but are heavier; ceramic-composite plates provide strong hardness with lighter weight, while UHMWPE plates are lighter yet may be more prone to damage from sharp impacts. The choice of material depends on factors such as threat level, weight tolerance, and intended use.

Protection levels are defined by testing standards issued by different authorities. In the United States, NIJ standards are widely referenced; in Europe and other regions, European EN standards or military standards such as STANAG 4569 may apply. These standards indicate the types of ammunition and conditions against which a plate has been tested. Front and back plates together determine the overall protection offered by a given carrier setup.

Historically, the concept of a backplate is found in plate armor from medieval Europe, where the ryggplatta formed part of the cuirass. In modern times, backplates have become a standard element of protective equipment for military, law enforcement, and security personnel, with ongoing advances in materials and design aimed at reducing weight while maintaining or improving ballistic performance.

Care should be taken to inspect backplates for cracks, chips, or delamination, and to avoid excessive bending or impact beyond design limits. Plates should be stored dry and used only with compatible carriers and front plates.