These are the super sharp needles that I use for working on woven fabrics. They give me amazing quality stitching and the most beautiful topstitches I have ever seen. So if the quality of your stitch is important to you, then this is the needle to have. I also pair this needle with my favorite Rasant thread. The weight of the thread and the size of this needle pair perfectly together.
 
Size: 80/12
Feature: Very slim acute point.
Fabric Use: Micro fibers, polyester, silk, foils, artificial leather, coated materials. Very thin acute point creates beautiful topstitching and perfectly straight stitches.