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-favourite narrow spout of our Chug Cap allows for faster drinking while keeping ice cubes at bay. The MagDock Cap is compatible with many Rambler Bottles. Do not use with Rambler JR 12 oz Kids bottle of Rambler 46 oz Bottle. Do not use the Rambler Bottle MagDock Cap with Carbonated beverages or for food storage.