First, from the aspect of fabric, the cloth bags are mainly made of canvas, corduroy, woolen velvet and other fabrics. In winter, some artificial wool will be used with canvas of good quality. Corduroy fabric has uniform texture and exquisite touch, but it is not very smooth.In the second place, from ingredients, compared with the leather bag, the cloth shape is not strong, easy to deformation, so the production sheet, general pressure on the fabric will be a layer of non-woven fabric (tang dynasty are: namely girls often use compressed facial mask of raw materials) to form solid package, heavy non-woven fabric prices higher and higher, it is better to be fixed and package form, so in general, metal ingredients, under the condition of same weight heavy cloth is better.Third, from the lining, pure cotton, silk cotton lining and chemical fiber lining, more solid, not easy to wire drawing, we may often encounter this situation: the appearance of the bag is not bad, the lining first broken, so when buying bags, lining is very important.Some of the brand bags are expected to have the brand LOGO, of course, the price will increase accordingly.The 4th, go up from charge for the making of STH.Fifth, from the hardware ingredients, that is, zippers, rings, hooks, etc., the best I have seen is probably copper, of course, the weight is also very heavy.