This hydration innovation marries our chug-style cap with the simplicity, function, and power of magnets for a 100% leakproof, on-the-go solution. The MagDock Cap is smartly designed with a magnet docking station so you never lose your cap when you're downing your H20. And the customer-favorite narrow spout of our chug cap allows for faster drinking while keeping ice cubes at bay. That's too many wins to count. Do not use the Rambler Bottle MagDock Cap with carbonated beverages or for storage of food or perishables. Learn more about product use and safety and Rambler Bottle Dos and Don'ts on our FAQ page.