Film that is co-extruded or assembled using two or three layers; pre-formed in the style of Doy Packs or padded, does not contain bellows; a zipper pull cord is inserted within. The characteristics of its size and functionalities should be consulted beforehand. Recommended for dry products, pellets, granules or flakes. The caliber of the film ranges between 90 and 180 microns; it can hold products that weigh between 100 grams and 1 kilogram.