The bold and colourful Stanley IceFlow™ Flip Straw Tumblers are made to keep you hydrated in a fully functional style. Ideal for your commute or workout, it has a built-in flip straw for easy and effortless sipping. Snap it shut and the double-wall vacuum insulation will keep your drink fully contained thanks to the leakproof mechanism and cold for 7 hours, as well as, iced for 35 hours. It fits comfortably in your car or bike cup holder, treadmills and spin cycles, too! The folding handle lets you quickly grab and go. To make your life easy, the IceFlow™ Tumblers are designed to clean easily. Every piece of this stainless steel water bottle is dishwasher safe. Available in different colours to mix or match with our vacuum bottles, food jars, and mugs.