Detailed Product Description 40/2 sewing thread 1.colorful sewing thread 100% spun polyester 2.different specification ... 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), ( ... to the customer's requirement too. sewing thread