First off, let me say these SHUESS portfolio bags are a lifesaver when it comes to organizing my kid's endless stream of school posters and art projects. The 18x24 size is spot-on for standard poster boards, and having 10 in a pack means I can finally stop digging through piles of wrinkled paper.

The PVC mesh material feels surprisingly sturdy at first glance—no flimsy plastic here. I've stuffed them with everything from finger paintings to science fair boards, and the reinforced stitching holds up well. The waterproof feature is a nice touch too; one survived an unexpected drizzle during a school pickup without turning my kid's dinosaur diorama into papier-mâché.

But (and there's always a but), I get the reviewer's concern about the zippers. While they glide smoothly at first, after a few months of heavy use, one started catching like it's got performance anxiety. I now open them with the delicacy of defusing a bomb—especially when carrying heavier boards.

The handles are comfy for quick carries, but I wouldn't trust them for long hauls with weighty items. These bags shine best as lightweight organizers rather than heavy-duty transporters. Pro tip: Use them flat under your mattress for secret art storage if you're out of closet space (don't judge my parenting hacks).

Bottom line? At this price point for 10 bags, they're great for occasional use or rotating displays—just don't expect archival-quality protection or indestructible zippers. They've earned a permanent spot in my 'school supply arsenal,' warts and all.