Optimum Nutrition | On Gold Standard Zone 1/2 Gallon Jug Shakers Optimum Nutrition | Optimum Nutrition Half Gallon Bottle Jug Quench Your Thirst With The Optimum Nutrition ½ Gallon Hydrator Jug. With A Massive 2. 2 Litre Capacity, This Versatile Bottle Is Ideal To Ensure You Stay Hydrated During Any Activity, Whether It’S A Long Gym Session, Hiking Or Just At Work To Guarantee Less Trips To The Tap. The Convenient Built-In Handle Allows Easy Drinking While The Heavy Duty Bpa-Free Plastic Ensures That This Sturdy Bottle Will Stand Up To The Daily Rigours Of A Hectic Lifestyle. Key Benefits: Bpa-Free/fda Approved Plastic 2. 2 Litre Capacity Built In Handle For Easy Drinking Unique Design | On Gold Standard Zone 1/2 Gallon Jug