Review on FIFTY Wide Mouth Straw Cap by Brad Knierim

I have a bottle of 505 and have tried other brands of caps because they were cheaper. Well, they never worked properly. Water didn't flow out of the straw. Or it will make a lot of noise. It got to the point where it was like trying to drink an In n Out milkshake. Impossible. In the end I broke down and bought another top made in the Fifty Fifty style. If you have a specific brand of bottle, I would suggest buying that brand of stopper as well. Although the description says it fits this size bottle, it doesn't work properly. I'm glad I found a fifty-fifty made for my fifty-fifty bottle. Works perfectly.