Take matters into your own hands with the SF500 Handheld SoftFlask. Designed for the minimalist runner, the SF500 is easy to hold with a flexible hand strap. It has a leakproof auto-shut off valve, twist locking cap, high-flow bite valve and large opening for rapid refills. Your next PR awaits.
UltraFlask™ IT 500 ML
The UltraFlask IT 500ml features our new IsoBound™ insulation technology that keeps water cold and won't sweat in warm temperatures. Engineered to keep fluids at an ideal temperature 38% longer than a standard flask. After all, cold water is more refreshing.