Stay hydrated wherever you are, no matter where life takes you, with this 21 oz. water bottle in black from Hydro Flask! It features their standard mouth and is great for hiking, sporting events, and more. Made of insulated, stainless steel, it can hold cold or hot beverages at the perfect temperature for hours, and its convenient size stows easily into backpack pockets and more! Plus, a handy, attached handle makes it easy to carry while on the go.