Water bottles sit in your cage for hours, baking in direct sunlight while you're focused on the road ahead. The Castelli Water Bottle holds 750ml and features a lockout cap that prevents accidental leaks when you're not drinking—useful if you've ever reached down to find your bottle has been dribbling all over your downtube for the last twenty minutes. The soft body compresses easily for one-handed drinking without requiring a death grip that pulls your attention from traffic or terrain.

The wide-mouth opening makes filling and cleaning straightforward, which matters more than people think until they're trying to scrub mold out of a narrow-neck bottle three months into the season. Dishwasher safe construction means you can actually clean it properly rather than just rinsing and hoping. The cap design uses a push-pull valve that opens easily with your teeth while wearing gloves—small detail, but anyone who's fumbled with a stiff cap on a cold morning descent understands why it matters.

Castelli's Water Bottle comes in Anthracite and Red colorways, both featuring their signature scorpion logo. Standard cage compatibility means it fits any bottle holder you're currently running without adapter concerns. BPA-free plastic construction throughout, because nobody wants to think about what's leaching into their hydration on a hot day. The 750ml capacity hits the sweet spot for most riders—enough volume to be useful on longer efforts, not so large that it crowds your frame storage or throws off bike balance.... Read More