Stay hydrated in style with this travel-friendly tumbler. It's made by Stanley, the company that invented the all-steel vacuum bottle in 1913. Ideal for commuting, camping and exercising, the durable tumbler features double-wall vacuum insulation that keeps drinks cold for hours. It also has a flip-up straw for easy sipping. Keeps contents cold for up to 12 hours and iced for up to 2 days. Features double-wall vacuum insulation, flip-up straw and folding handle. Fits in most car, treadmill and bicycle cup holders. Made with waste-conscious plastics recycled from fishing nets. Dishwasher-safe.