Production of materials bags What?

Now we use the so-called "green bag" is broadly divided into about several:
1 Non-woven bags (in repeated use, the final recovery of the circle can be called under the Environmental Protection)
(2) canvas bags (relative to other materials it is the most environmentally friendly, and no environmental pollution)
3 cotton bags (and canvas the same characteristics)
4 flannel bags (mostly rayon - Cotton, and the fabric of our clothes as it goes without saying)
5 polyester fabric vest bag (polyester fabric, similar to our common umbrella cloth, and clothing used in the cloth, because to do with this cloth bags are usually vest style, so called vest bag)
6 Other green fabric bag (hemp cloth and canvas surface is not the same nature)