Poler Men's High and Dry Rolltop 20L Ocean Mushy Trees 100% Nylon Imported Hand Wash 51 centimeters high 33 centimeters wide It has a built in zipper so you can buy our dry bag separately and zip it inside and create a two compartment system jus like our 40l comes with Dimensions: 20 inch H x 13 inch W x 9 inch cold Volume: 20 liters/1220cu.in It has a built in zipper so you can buy our dry bag separately and zip it inside and create a two compartment system jus like our 40l comes with Dimensions is 20 inch H x 13 inch W x 9 inch cold Volume is 20 liters/1220 cubic inch