Suav cov tsho tiv thaiv mos txwv tuav 70% ntawm lub ntiaj teb ua lag luam vim lawv cov qauv kev tiv thaiv siab, cov khoom siv siab heev, thiab cov nqi zoo. Lawv cov txiaj ntsig tseem ceeb yog nyob rau hauv cov qauv kev ua tau zoo ntawm cov mos txwv tsis zoo (dhau tsawg dua lossis sib npaug li 25 hli) thiab kev siv dav hauv cov khoom siv hauv tsev xws li ultra- siab molecular hnyav polyethylene (UHMWPE).
Suav cov tsho tiv thaiv cov mos txwv siv cov qauv ntsuas nruj dua li cov neeg hauv Tebchaws Meskas, yuav tsum tau ua kom lub hauv siab ntawm lub hauv siab kab noj hniav tom qab cov mos txwv tsis pub tshaj 25 hli, deb tshaj US tus qauv ntawm 44 hli. Qhov no txhais tau tias yuav txo tau txoj kev pheej hmoo ntawm blunt force trauma. Cov txheej txheem siab no tau tsav kev txhim kho txuas ntxiv hauv cov khoom siv thev naus laus zis, los ntawm cov phiaj hlau thaum ntxov mus rau kev sib xyaw ua ke ntawm cov txheej txheem ceramic thiab UHMWPE fibers (xws li Dyneema®), ua kom muaj kev tiv thaiv ntau dua peb zaug.
Hais txog cov ntaub ntawv, Tuam Tshoj tau ua tiav kev ua tiav hauv kev tsim khoom hauv tsev ntawm UHMWPE fibers. Cov khoom no muaj zog txog li 15 npaug ntawm cov hlau thiab, tib theem ntawm kev tiv thaiv, yog 20% -30% sib zog dua li aramid fibers, txhim kho kev hnav zoo thiab kev txav mus los. Tsis tas li ntawd, Suav cov tsho tiv thaiv cov mos txwv yog luv nqi ntawm kwv yees li $ 200, tsuas yog 40% ntawm cov khoom zoo sib xws Western, ua tiav kev sib tw thoob ntiaj teb los ntawm lawv "zoo thiab tus nqi qis."
