Just got these Cunno portfolio bags and here's my honest take!

First off, the size is perfect for my 24x36 posters. The handles are comfy and long enough to throw over my shoulder - major plus when carrying multiple pieces.

The material feels surprisingly durable. I've had cheaper versions that ripped immediately, but these PVC bags seem like they'll last. The black/clear combo looks professional too.

BUT... the zippers are a nightmare. Spent 15 minutes wrestling with one that refused to open. When it finally did, getting it closed again was another battle. Such a shame because otherwise these would be perfect.

Also be warned - they arrive folded into tiny squares with permanent creases. Not ideal if you need perfectly flat storage for delicate artwork.

Verdict? Great concept with some quality control issues. Might keep one for rough drafts but returning the others.