An expensive, but must have cap
"You might look at the price and think do I really need that? If you have new cup drinker or a forgetful toddler, this is a must have so your kids can start Klean Kanteen from a young age. I utilize these sippy caps as young as 6 months old for the 5 kids I’ve had since discovering Klean Kanteen and use to approximately 2yrs when they upgrade to the 27oz cup with the sports cap. The stopper does wear over time and begin to leak, but expected. To preserve the life of it I recommend never putting it in the dish washer as this has seemed to be the fastest way to need a replacement. If possible, avoid the brushes within the cylindrical part of the stopper unless needed, I find I can just press the sides together and gently rub to achieve clean without the additional wear on the cut in the stopper. I always advise utilizing the parts section and buying additional stoppers for the cap. If your child is at the stage of playing in water, they will happily shake a cup with this spout both right side up and upside down to get water out of it that way, it’s mostly leak proof but nothing is ever truly child proof."

















