High-flow valve gives you quick access to fluids. Instantly access water/gel combos with the patented Race Cap. The caps are interchangeable and work on every Nathan Flask. BPA-free and dishwasher safe.
The first-ever, double-wall insulated flask with Fire & Ice technology means you’ve found your new favorite flask. With integrated 3M™ reflective fabric offers 360-degree reflectivity for visibility in low-light conditions.