SKYDUE Expanding File Organizer with 8 Pockets, Accordion File Folders with Labels, Portable Document Paper Bill Receipt…

This pick is the outlier in the lineup because it isn't a hanging folder at all — it's a polypropylene 8-pocket accordion organizer aimed at users who need to carry documents rather than file them. Across the reviewers we read, that's its niche: students moving between classes, gig workers carrying client paperwork, and households consolidating tax documents. The Amazon signal is strong (4.7 stars across more than 8,000 reviews) and r/stationery threads asking about 'simple zipper expanding folders' repeatedly surface SKYDUE as a budget-friendly answer.

The consensus criticisms are specific and worth knowing before buying. A r/Gloomhaven thread we read flags that the elastic closure band runs short and stretches out — that reviewer fixed it with a hair tie. A separate r/stationery thread asking for 'genuinely rigid' expanding folders explicitly notes that polypropylene options like this one are flexible rather than rigid, which can be a downside if you want the folder to stand upright on a desk. Capacity is also realistic: SKYDUE's own product pages cite a 200-sheet maximum, which several reviewers say is closer to 150 sheets before the pockets start gapping.