Everyday Is A Thirst-Day It's time to set your goal on staying fully and regularly hydrated with the Hydration Nation 1 Gallon water bottle. With a capacity of 128 ounces, it holds enough for your water intake throughout the day. It also comes with a detachable white straw and built-in polyester strap. Living Up To Its Name The bottle itself is made of 100% BPA free high-quality Tritan material that is lightweight, transparent, and durable. It has a length of 13.5 inches, 5.5 diameters at the bottom, and a 3.15 mouth diameter that makes refilling and cleaning convenient and easy. If you take this water bottle in your office, it will be a definite conversation piece.