Specialized Little Big Mouth Bottle

Meet our best-selling Little Big Mouth 21oz Bottle—a customer favorite that combines a revolutionary design with a perfectly compact size. It’s built for convenience, completely leak-proof, and designed to make hydration effortless.

The Big Mouth screw top seals tightly and features an ultra-wide opening, making it easy to add ice cubes or your favorite hydration mix. Plus, with a water flow up to 50% greater than the competition, you’ll stay refreshed faster.

Designed for performance, this bottle has a flexible, ergonomic shape that fits comfortably in your hand and securely in bottle cages. It’s made from BPA-free, 100% FDA food-grade plastic, so you can sip with confidence.

We’ve also updated the MoFlo cap—it still delivers that smooth, high-flow hydration but is now even easier to clean, thanks to a flush top and improved grip. And, of course, it’s 100% leak-proof.

Prefer a little more hydration? Check out the 24oz Big Mouth option for even more capacity.

Stay hydrated, ride strong, and grab yours today! 🚴‍♂️💧