These are some custom manufactured, unbleached cotton nets we had made with a sewn bottom for some added support and elegance. 3-Stitch refers to the strength of the net weave. This is the strongest! There are 3 different specifications: 3, 5, and 7 stitch makes. The higher the number, the weaker the weave. You'd think the higher the number, the greater the strength...but that is simply not how the manufacturers say it. We wanted the strongest out there, so we went 3-stitch! Use in combination with a muscle stuffer, or by hand. It is much easier with a tabletop stuffer, obviously...