Straw Cap Compatible For Yeti rambler Jr. 12 oz, rambler bottle 18 oz, 26 oz, 36 oz, 46 oz, 64 oz and RTIC Bottle 18 26 36 64 oz (Not fit any Rambler Tumbler). Humanization design: When you need hydration, all you have to do is flip it open, take a sip, and close it tight. The cap is leak-proof when closed and easy to carry with the triple Haul handle. Easy to carry but not easily break. The cap is unbreakable and does not affect the taste of your beverage. With a wide straw opening, you can get more to drink with every sip. Multiple colors, each beautiful cap perfectly matches your Rambler bottle. Say “Goodbye” to drab dull black. Easy to clean, dishwasher available on top rack.