We have tried: We use the disappearing pen on various types of textile materials (loincloth, polar fleece, outdoor fabric, knitwear, tracksuit fabric). It draws best on cotton canvas, the marked lines do not dissolve, they are precise and clearly visible, which every dressmaker will appreciate not only when cutting and adjusting clothes. The pen only spreads slightly on satin. The drawn lines and marks do not dust out like with tailor's chalk, but disappear by ironing.