Holds 40oz of water or 5 cups of food in its 3" high, 5" square size. 1000D Cordura outside body, with 420D water repellant packcloth interior. No holes, cuts or stitches anywhere except in the upper lip, so it is less prone to leaking. Packs compactly, and is ready for use in seconds. Thoroughly air dry after use with liquids. Hand wash or machine wash cold only. Air dry.