Waves Forever Cold Water Bottles are hydrations best friend. Stainless Steel dual pane construction keeps liquid cold up to 24 hours or hot up to 12 hours. Forget those tiny insulated water bottles that you drink in 3 sips, Waves Forever Cold Water Bottles hold up to 25 fluid ounces of water. To make it even better, the 1.75-inch mouth makes it super easy to fill your bottle with even the biggest ice cubes. Stylized with an unforgettable bamboo top plate, the Forever Cold bottle top includes stainless steel loop ring and deep groove seal technology to ensure you never lose your bottle or a drop of water. Features: - Keeps liquid hot for 12 hours, or cold for 24 hours - 25 fluid ounces (750mL) capacity - Bamboo top plate