Our Rambler® Flip Chug Cap uses a magnetic C-Lock that unlocks quick chugs and locks in every drop. It sits right below the spout on the cap, and there are three ways to unlock it.

1. There’s a raised tab in the center of the C-Lock. Use your thumb to switch it firmly all the way to the right, toward the unlock position. 
2. Use two fingers to grip both side of the C-Lock, then twist it fully to the right to unlock. 
3. Hook your finger on the back edge of the left side of the C-Lock and pull it towards you.

Switch the magnetic C-Lock to the right to flip open the cap and unlock sips. Then, push the cap down until it clicks and switch the C-Lock to the far left to make sure it’s 100% leakproof.

Yes, you can pair the cap with all Rambler® Bottles. We recommend using it with 18 and 26 oz. bottles. You can also mix and match any of our Rambler® Caps with all Rambler® Water Bottles.

You’ll hear a click when the C-Lock is switched to the lock position and the raised tab will align with the lock symbol.

The 18 oz. will fit in most cupholders, while the 26 oz. may be too large. Explore our full lineup of cupholder compatible drinkware.

It is intended to be used with cold or room temperature drinks only. Do not use for hot, carbonated, or pulpy beverages, or for storing food or perishables.

Yes. When the Rambler® Flip Chug Cap is locked, it is 100% leakproof.

It’s dishwasher safe. Wash the bottle, cap, and all rubber gaskets before initial use and after each use. There are three rubber gaskets in the cap: one above the threads, one below the threads, and one in the spout cover.

Yes, we recommend putting the lid on the top rack and the gaskets in the utensil basket.

Yes, Rambler® products can be customized but color exclusions may apply. Feel free to choose your favorite design from our gallery or customize your corporate order with your brand’s logo.

Rambler® Drinkware comes with a five-year warranty. For more information, please visit our Warranty Information page.

Yes. All YETI® Drinkware is BPA free.