Zovala zopanda pake (ud) ndi mtundu wazinthu zopangidwa kuchokera ku UHMWPE fir kapena hirpi fiber yomwe imaphatikizidwa kuti ikhale yosagwirizana. Chovala cha UD chimagwiritsidwa ntchito popanga zida zankhondo zathupi ndi zipolopolo chifukwa champhamvu kwambiri - to radio ndi kukana bwino. Kapangidwe kanu kosagwirizana kwa nsalu ya UD kumapereka katundu wabwino kwambiri, ndikupangitsa kuti akhale chisankho chabwino kwa zida zankhondo. Zinthu zomwe zili zopepuka, zosinthika, komanso zimatha kutsutsana kwambiri zosokoneza ndi kulowa, kupereka chitetezo chabwino kwa wovalayo.

Mphamvu yayikulu ndi kukhazikika: fiber ya HMPEPE, ndi nsalu zosalala zopangidwa ku China zimadziwika kuti zidalitse zida zawo ngati zida, komanso zilonda za chikho. Zinthuzi zimapereka chitetezo chabwino komanso magwiridwe antchito, ndikuwapangitsa kuti azigwiritsa ntchito - mphamvu ndi zapamwamba - Madera Opsinjika.