The Barrel Cooler from North Water two sizes of insulated Barrel Coolers help keep cold things cold on hot days. Each size works on its own, or with its appropriate Blue Barrel in tandem with the TriBags, Barrel Caddy, and Barrel Accessory Roll systems to provide the perfect configurations for before, during, and after your trip. Choose the Large for a 60 L Blue Barrel or Small for a 30 L Blue Barrel. Specifications Category: Coolers Best Used For: Expedition Volume Size:: 5L , 15L Type of Carry: Handles Normally Ships in 0 to 3 Business Days Features Benefits Feature: 1/2" closed cell foam for insulation Benefit: Double walled with roll top closures Design: Seam taped inner lining and insulation are removable for easy cleaning Use: Collapsible when empty Guaranteed Workmanship and Performance