YETI Rambler 18oz Insulated Bottle with Color Matched Flip Chug Cap - The Rambler Flip Chug Cap gives you quick access to hydration on nonstop days. When thirst hits, slide the C-Lock to the right to unlock, and with a quick flip the cap is ready for sipping. Then press the cap down and slide the C-Lock to the left, and now your cap is securely locked, preventing unwanted spills. The fully leakproof cap keeps your liquids sealed as you navigate packed mornings and congested sidewalks. And thanks to a securely locking covered spout, you can toss it in your pack's hydration holster or gym bag without worrying about the grime. Features Lockable Covered Spout; 100% Leakproof Cupholder Compatible; Double-wall Vacuum Insulation; Rust And Puncture Resistant; Dishwasher Safe;