Pacific Arc Vinyl Bags are mesh reinforced for durability and strength that make convenient carrying cases for artist supplies. They are made from heavy duty vinyl, and very affordably priced. Sold in a large selection of sizes and styles. The Envelopes and Totes include a zipper on the long edge, except the 5 in. x 16 in. which has a zipper along the short edge.The 3-Ring Binder Case has a blue reinforced edge with three grommets. The Deluxe Bags include 2 handles and a small outside storage pocket. Each bag is zipper enclosed.