Lamba wokwezera (synthetic fiber) amapangidwa ndi ulusi wamphamvu kwambiri wa poliyesitala, womwe uli ndi maubwino angapo monga mphamvu yayikulu, kukana abrasion, kukana kwa okosijeni, kukana kwa UV, ndi zina zambiri, ndipo ndi yofewa komanso yosayendetsa.Pali mitundu yambiri ya malamba onyamulira.Malamba okhazikika (molingana ndi mawonekedwe a lamba wokwezera) amatha kugawidwa kukhala: Zomangira mphete ziwiri, Flexible ring ring, Flexible ring.