Kubijyanye n'imyenda n'imyenda, fibre y'amata ifite ibintu byiza bitandukanye.Imwe ni icyatsi no kurengera ibidukikije.Kuberako idakoresha fordehide na azo inyongeramusaruro cyangwa ibikoresho fatizo, fibre formaldehyde ni zeru;ikungahaye ku bwoko 18 bwa aside amine ifasha umubiri w'umuntu, ishobora kugaburira uruhu;ifite ibintu bisanzwe bitanga amazi kugirango uruhu rworoshe kandi rworoshye.Iya kabiri ni ihumure ryiza.Monofilament yayo ni nziza mubunini n'umucyo muburemere bwihariye.Kurambura kwayo kuruhuka, gukomera kwa elastique, no gukira kwa hafi ni hafi ya cashmere nubwoya.Fibre nini kandi yoroshye, kandi yumva ari cashmere;