LEAK PROOF - The leather flask made of Premium High Quality Food Grade Stainless Steel, covered in the finest top grade PU leather. The cap seals tightly to make sure no vodka, whiskey, bourbon or other favorite beverage will leak out and get wasted.FASHION & VERSATILE - You will enjoy the unique design and nice feeling with non-slippery durable PU leather in your hand, that gives you a safe firm grip while drinking from it or taking it up from your pocket or suit.