This does exactly what it's supposed to, despite riding in dust, mud, and other conditions that leave the bottle exterior filthy the actual part you drink from stays perfectly clean!
I realize Fidlock, like many companies, make you buy more than you want (can't just buy the mount piece that attaches to the bottle alone), but this just makes no sense. Why are some bottles tops able to be protected by a cover piece but not all? Make this cap for all bottle sizes, c'mon now
Thanks for taking the time to publish a review and I am sorry to hear you're disappointed. In case you do need the bottle connector individually, we do offer that separately. Regarding the bottle caps compatibility, I understand your frustration. We use multiple manufacturing partners and unfortunately they don't share thread patterns so we cannot make all caps compatible with all bottles. However, we do understand this is disappointing and are working towards more and more cross-compatibility going forward.
It's a good design that works. Only four stars bc it's expensive.
It's a cap to keep the mouthpiece clean and it works. Only four stars bc like everything fidlock, it's expensive. Good, but expensive.