Saab Group based in Sweden has developed a Modular Soft Armor protection system. It is modular in that it consists of hollow panels which can easily be joined together with standard tools before being filled with the anti-ballistic ceramic cores. These panels can also easily be integrated into any new military or civilian vehicles and infrastructure, or existing vehicles and infrastructure. The system weighs only 180 kg/m² with a thickness of 120 mm which can be compared to concrete at 500 kg/m² and RHA at 200 kg/m². Perhaps most importantly, it has been tested to offer ballistic protection of up to NATO 7.62 AP ammo, STANAG level III.
Thanks to ‘Jim’ for the tip!