Carrying comfort Our portfolio folders feature wide shoulder straps to reduce strain on shoulders and hands when transporting items. The vinyl storage bags are foldable for easy storage when not in use. Lightweight and durable Nylon straps and closures are securely sewn to hold contents firmly. The mesh construction provides greater stability than ordinary clear plastic bags. Protect your items Zippered poster bags are made of waterproof vinyl mesh to shield items from water, dirt, and scratches. Rain or moisture will not wet or dirty your contents. Size, capacity and compatibility The 19x25 vinyl combo bag fits 18x24 panels. It can store up to two packs of 18x24x4/5 large panels. Suitable for bulletin boards, posters, puzzles, cushions, artwork, diagrams and more. Usage scenarios - Art class or studio transport: carry multiple 18x24 panels to classes or workshops with protection in transit. - Gallery or exhibition preparation: move ready-to-display posters and boards securely between locations. - Home organization: store and protect artwork, diagrams, puzzles and similar items when not in use.