Stanley combines the fan-favorite IceFlow Flip Straw Tumbler and the ultra-portable AeroLight Transit Bottle, now featuring a Fast Flow Lid. This wide-mouth design allows for quick and easy hydration during workouts or hikes. The leakproof, angled Fast Flow Lid makes it easy to pour, drink, and clean. The secure snap-on cap fits neatly into the integrated handle holder, keeping it out of the way.