It’s the flask that never lets you down—unless of course, it’s empty. Stanley's Flask has a retro look, portable size, and slim silhouette. There’s a wide mouth opening for easy refills (no funnel needed). And the stainless steel construction with leakproof cap makes it extra durable. Stainless steel flask 8 oz Leakproof Packable Never-lose cap with wide opening 18/8 stainless steel BPA free Dimensions: 1.5" x 3" x 7.5"