Vatsvagiri vakaratidza kuti nhumbi dzemotokari dzinoshandisa simbi dzakasanganiswa foam zvinhu zvinogona kuvharira 0.50 caliber mabara uye pfuti-kubaya pfuti. Kunyange zvazvo uremu hwayo huri pasi pehafu yehuremu hwesimbi yechinyakare nhumbi dzokurwa nadzo, kudzivirira kwayo kwakafanana nesimbi yechinyakare nhumbi dzokurwa nadzo. Kuwanikwa uku kunoreva kuti vagadziri vemotokari vanozokwanisa kugadzira mota dzemauto dzakareruka pasina kupa kuchengetedzwa, kana kuvandudza hunyanzvi hwekudzivirira mota pasina kuwedzera huremu hwemotokari.

Composite metal foam material imhando yefuro zvinhu inoumbwa nehollow metal balls. Aya mabhora esimbi akagadzirwa nesimbi isina tsvina kana simbi titanium uye akaiswa musimbi matrix yakagadzirwa nesimbi, titanium, aluminium kana mamwe masimbi alloys. Muchidzidzo ichi, vatsvakurudzi vakashandisa simbi-simbi inoumbwa nesimbi furo zvinhu, zvinoreva kuti zvose bhora uye matrix zvakagadzirwa nesimbi.

Muchidzidzo ichi, vatsvakurudzi vakagadzira simbi yakaoma yezvombo inoumbwa neceramic panel, composite metal foam core, uye aluminium nhete yekumashure. Muedzo wezvombo wakashandisa 0.50 caliber mabara uye pfuti-kubaya mapurojekiti. Yekumhanyisa kumhanya kweyedzo yekuyedza inotangira pa500 metres pasekondi kusvika ku885 metres pasekondi.

Iyo yakashongedzerwa inoumbwa nesimbi foam material layer inogona kutora 72-75% yesimba rekinetic rebara uye 68-78% yesimba rekinetic repfuti-kubaya pfuti.

Pamusoro pekureruka pahuremu, furo resimbi rinoumbwa rinoshanda zvakanyanya mukudzivirira x-ray, gamma rays uye neutron mwaranzi, uye simba rayo rekudzivirira moto nekupisa zvakapetwa kaviri zvezvinhu zvakajairika zvesimbi.