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I had an Ultimate Direction bottle that I LOVED for something like twelve years. When it finally broke, I had to buy another one from the same company out of loyalty for a great product. I bought this bottle and one of the balls with the kicker mouthpiece. I have to say that this bottle has been a complete disaster in terms of functioning as a water bottle. First, it has been practically impossible for me to get the cover on to the body because the grooves in the cap don't match up well. I know it sounds stupid, but it will take me 15 seconds just to get the cap to begin to thread on correctly. Second even when the top seats properly, water leaks from between the cap and bottle all the time. I know this bottle is only six dollars, but at the end of the day, it simply doesn't serve its one purpose properly. My experi nice has been that you should not purchase this particular UI bottle. The other bottle I bought has not had any similar problems (though it's also twice as expensive. ASI on May 21st 2017
Happy to be able to buy these great replacement bottles at special half price on the Ultimate Direction website. Unknown on Dec 5th 2016
This is my favourite bottle. I've been using the same one for about 10 years or so because I didn't know it was possible to buy more. I don't like anything else out there. Thank you for making these available! Ease of use is phenomenal! Trisha on Nov 14th 2016
Favorite style of bottle with an easy to use valve. Unknown on Sep 13th 2016
As another reviewer said, these have been my favorite water bottles since I started running over 15 years ago! Nothing really compares--tried and true! Unknown on Aug 14th 2016
Added: 9-11-2013--This has been my favorite style of bottle since I first used one in 2000. It just works! Durable and doesn't fail. Love it! David on Sep 10th 2013
Valve does not stay open well when trying to drink on the run. Have to use one hand to hold bottle and other to hold valve open while drinking. Had bottle with kicker valve which seemed to be a pain because valve can be hard to pull out, especially with sweaty hands, and not real easy to drink from. Thought this would be better. It's not. Michael on Apr 18th 2012