Common materials listed are Nylon, Plastic (PP), and Polypropylene.
Package quantities shown include single items and multipacks such as packs of 5 and packs of 12.
Descriptions use terms such as waterproof, water-resistant lid, wear-resistant, tear-resistant, and durable for long use.
Styles shown include transparent mesh document bags, A4 envelope-style folders, accordion/expanding files, plastic envelopes, and binder pocket holders.
Most listings use snap or snap-button closures as the primary fastener. Some also mention a water-resistant lid and describe the snap closure as secure; accordion files note snap closures for added transport security.
Sheet capacities listed range from about 30 sheets up to 200 sheets, with specific examples including 30, 50, 100, 120, and 200 sheets.
Common organizational features include: blank or business card slots; tabbed pockets (in accordion files); color-coded or colored edges for sorting; pre-punched holes for binders; handheld/handle designs; clear covers for visibility; secure snap or snap-button closures; and in some listings, water-resistant lids.