Umwenda w'ubwoya bworoshye uroroshye, woroshye, wumye vuba, byoroshye gukaraba, kandi uracyakomeza imbeho iyo itose.Ibintu byose bingana, birwanya ubukonje bwikubye kabiri ubwoya bwa Merino hamwe ninshuro enye zirwanya ubukonje nka pamba. Ubwoya bworoshye bwa polar bworoshye biroroshye kuzenguruka, ntibuha icyuya, kandi nuburyo bwiza bwo gutuma umwenda wuma mugihe wambaye, bityo bikagumana ubushyuhe bwumubiri. Kuruhande rwibidukikije, ubwoya bwa polar ni fibre synthique ishobora gukorwa mubice bimwe bivuye mumacupa ya plastike yatunganijwe neza.