Indwangu engalukiwe ye-spunlace elungele izingubo zokucisha umlilo/izingubo zokubalekela ngokuvamile zenziwe nge-polyester (i-polyester fiber). Isisindo ngokuvamile siphakathi kuka-60 no-120 amagremu imitha-skwele ngayinye, futhi ukujiya cishe kungamamilimitha angu-0.3 kuya ku-0.7 ukuqinisekisa ukumelana nomlilo namandla emishini.
