What is the largest size Hydro Flask?
128 oz. ≈ 1 Gallon
The largest size of hydroflask is 128 oz. which is made by double walls of stainless steel 18-8, the best beer growler and water container at the camping outdoor living, your beverage will stay cold 36 hours up inside the big hydrojug.
128 oz. gallon hydro flask is an insulated water bottle that is perfect for outdoor activities or just to have one with you at all times. This water bottle has a wide range of colors and options.