Stay hydrated all day long with the Thermoflask 24oz, perfect for keeping your favorite beverages at the perfect temperature for hours. Its double-wall vacuum insulation ensures that your drinks stay cold for up to 24 hours or hot for up to 12 hours. Made with high-quality stainless steel, this flask is durable and resistant to rust and impact. Customize your Thermoflask with a personalized laser engraving of your choice, simply email a Black & white SVG file to us and we will take care of the rest. Make it a unique gift for yourself or your loved ones.