Chikwama chachikwama cha Canvas chimapangidwa ndi thonje. Chifukwa cha zinthu zake zachilengedwe, ndiye kuti mtengo wamatumba achikwama ndiwokwera mtengo kuposa nsalu zosaluka. Timakonda kuteteza dziko lapansi ndi matumba ogulitsanso ogulitsidwanso, mutha kunena kuti ayi pamapepala kapena m'mapulasitiki ndikuteteza chilengedwe cha dziko lapansi chomwe chimakhala anthu onse.
Chikwama chosungika chopangidwa ndi polyester, cholimba, cholimba komanso chopepuka komanso chosavuta kuyeretsa komanso cholimba. Komanso ilibe madzi, chifukwa chake simuyenera kuda nkhawa za madzi kapena msuzi wowononga matumba.
Zomwe zili m'thumba la thonje ndizopangidwa ndi thonje, ndipo palibe mankhwala othandizira, ma ferlilizers, kapena mankhwala ophera tizilombo mu thonje wamba. Mutha kudalira kuti ndi yosinthika chifukwa sichingakhale pansi.