TWIST Bottle 590 + Bike Base

Clips in easy in place when you need it and stay even during rough downhill runs.
This thing is awesome.

I have 2 fidlock bottles with the flip cap and both leak all over my bike when they are more than half full. My frame then get covered in dirt attracting stickiness

Fit my frame perfectly pretty sure it rattles a bit but nowni can carry 3 water bottles and a hydration pack on big days

I got this and the 800ml version. I really like them. They have a clean look without the traditional bottle cage. The bottles themselves don't leak and the hinged cap keeps the nozzle clean. They don't fall off; while I ride mostly gravel and moderate MTB trails, I did hit a bump hard enough today to rattle my brain but the bottles stayed on. They are easy to remove. I'm experiencing a bit of a learning curve to reattach them while riding; some of which is old age related, so you young people should do just fine.

I love this water bottle, it is so easy to grab and place back on my bike!