1.[Material] - The hip flask is constructed from stainless steel material, with a plating surface finish for corrosion resistance, wear resistance, sturdy construction, not easy to rust and deform, and has long-lasting durability. 2.[Leak Proof] - The cap of our hip flask is sealed tightly to ensure that wine or beverages will not leak out and be wasted. Furthermore, the cap features a hinged design which is connected to the flask, ensuring that they are not misplaced and lost. 3.[Easy to Carry] - The shape of the flask is flat and rectangular, portable to carry out, allowing it to easily fit into pockets, bags, or hidden compartments. Store it anywhere, drink anytime and anywhere. Besides, our hip flask set comes with a storage box for convenience and easily fits into backpacks for outdoor activity and sharing drinks with your friend. 4.[Multifunctional Application] - The portable hip flask can be brought while camping, fishing, picnic, boating, hiking and other outdoor or indoor activities to carry and store a small amount of liquor or other beverages.