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The 100% leakproof Flip Seal Sport Cap comes with an ergonomic spout that opens and closes with just a flick of the thumb and can be used with or without a stainless steel straw for maximum versatility so you can stay hydrated your way. NOTE: Steel straw sold separately, to fit correct bottle size. Compatible with Classic narrow mouth bottles only (with internal threads). Recommended for kids ages 3+.
Check out our Care and Use page for videos, maintenance and cleaning tips. Visit our FAQs for additional questions.
Overall rating: 4.742857 / 5 from 35 reviews.
Review topics: ["size","quality","color","cap","leaks","lid","spills"].
"The Kleen kanteens are a great way when traveling. I use one for the car when going on a long or short trip. They're well made, of stainless steel and the spouts are easy to use. I have one in my car, and my golf bag. Sizes make it easy to use."
"I bought this cap as a backup for a water bottle, we've used it a handful of times now and it works great even without the straw. Easy to use for kids and adults."
"I ordered this cap with no straw because I prefer tipping my bottle to drink and not having to clean a straw. However, I really don't like the design of this Sport Cap. It has too many tight corners that are difficult to clean and see. The inside of the cap has a deep, sharp angle that is impossible to get a cloth or even a pipe cleaner into to truly clean all surfaces well. In addition to that, this cap feels like it was made for the straw and removing the straw was just an after-thought. Because if I go to drink when the bottle is full, water comes out of the air-flow hole and splashes me. And when I try to drink when the bottle is getting low, the last few ounces of water get trapped in the cap because they can't actually reach the drinking spout, because that spout was shaped to hold the straw and it sticks out too far! The bottle itself I like, but I regret buying this Sport Cap."
"For some reason, my kiddo would periodically bite the flip up straw portion of her first sport cap. I'm was so relieved to find that they offer replacement parts so that I don't have to replace the entire bottle yet. Well done, Klean Kanteen!"
"Color is different than picture for the yellow golden. Other than that it’s a great cap!"
"I bought these to replace other caps that were not spill proof and had to be dismantled to clean. They do the job."
"I have so many water bottles! My niece calls them "OG. " First, I am grateful that I can replace caps that had siezed up over the decades, and they fit perfectly. Score one against throw-away culture! Second, they are way easier to keep clean. Third, they don't leak as I hike with a bottle in my hand. (The old ones always dripped a bit, which was fine on hot days. ) The only difficulty is teaching myself how to drink lying down from the bottle next to my bed. That one does not have a straw cuz I want to avoid waking up too much in the middle of the night to get a drink of water. I have poured water on my neck and pullow a few times. I'll learn eventually. ;D Thank you Klean Kanteen!"
"Great top, leak proof when closed fully."
"Fits the straw in a separate purchase. Happy with it. The grey wasn’t really as grey as I had imagined it to be"
"Overall, it’s a great cap option. Leak proof and durable. Only negatives are that the straw part can be a little tough for my littles to pull open and it’s not easy to detail clean."
