I finally found a water bottle that I can use with my kids and not have to drink their backwash. Camelbak now makes a "better bottle" water bottle that has their bit-n-sip lid. It is a little pricey - I paid $12 a bottle. To me it was well worth every penny because when we go for a walk etc. I only have to remember to bring & carry one bottle vs. one for them and one for me to drink. Plus I use it all the time without the kids.