Stanley's THE ICEFLOW FLIP STRAW 2.0 TUMBLER 0.89L is a large tumbler specifically designed to hydrate with maximum functionality.Ideal for use on the daily commute or training sessions, this stainless steel tumbler incorporates a straw to make drinking easy and effortless. Once closed, its double-walled vacuum insulation keeps the drink perfectly sealed and cold for up to 12 hours, or icy cold for up to 48 hours. What's more, it fits perfectly into the cup holder in your car or bike, as well as the one on your treadmill! This cup even comes with a folding handle so you can grab it and take it away quickly. And it's easy to clean in the dishwasher.