Poly bag thickness is measured in mils (thousandths of an inch). Use 2 mil for light apparel, documents, and general protection; 4 mil for tougher handling, parts, or items with some edges; and 6 mil or heavier for heavy, abrasive, or long-term storage use. The selector below takes your item type, weight, edges, closure, and special requirements and returns a recommended mil plus a matching bag format.
Choose a poly bag thickness based on item weight, edges, closure needs, and handling risk. The goal is not always the thickest bag; it is the right bag for the workflow.
Recommended bag path
2 mil
Light product protection for soft goods or documents.
Recommended format: open-top or self-seal poly bag.