Water bottles seem like the simplest piece of cycling equipment until you actually try to drink from one while riding. The squeeze, the flow rate, the valve's tendency to leak in your jersey pocket—these details matter more than most riders realize until they've dealt with a bottle that fights them at every sip. Specialized's Purist technology addresses the drinking experience from a different angle entirely, focusing on what happens inside the bottle between rides rather than just the mechanics of getting liquid out.

The Purist system applies a silicon dioxide coating to the interior surface of the bottle, creating a glass-like barrier between the plastic and whatever you put inside. This matters because standard water bottles absorb flavors and odors over time—fill a regular bottle with energy drink mix for a few months and plain water starts tasting like stale citrus. The coating prevents that absorption, which means the bottle stays neutral whether you're switching between water, electrolyte mix, or whatever else gets you through a long ride. The treatment also resists mold and bacteria buildup in the threads and valve areas where moisture tends to linger.

Specialized uses their MoFlo valve on these bottles, which delivers a high flow rate without requiring you to bite down or activate a mechanism. Tip and squeeze—that's the entire operation. The valve self-seals when the bottle returns upright, preventing the slow drip that leaves a wet spot in your bottle cage or jersey pocket. Bottle cage fit follows standard dimensions, and the shape works with side-loading and traditional cages equally well.... Read More