... spun polyester thread Features: a) (60s/2), : used for shirts, blouses, lingerie, light weight fabrics b) (60s/3 ... ), (40s/3): used for tailoring, rain wear, shirt, blouse, sports wear, knitwear, ... quilts c) (40s/3): used for tailoring, trousers, jacket, medium, heavy fabric d) (20s/2), ... best to serve you better. fashion dress sewing thread