Hydrapak Ultraflask + 500ml Water Bottle With Filter Kit Clear, One Size

What Our Gearhead(R) Experts Are Saying:"I used the UltraFlask+ on a fastpacking trip through the Uintas and didn't need to carry a separate filter. It fit perfectly in my vest, the flow rate was solid, and I was able to drink straight from alpine streams with confidence."When we're traveling light and covering big miles, simplicity and trust matter most. The UltraFlask+ 500ml Water Bottle with Filter combines our favorite vest-ready soft flask with an integrated water filter, giving us instant access to clean water on the trail. No need for extra gear or extra weight-just fill and go. The included filter removes common bacteria and protozoa with no pumping or waiting. We drink directly from the flask through the high-flow bite valve, enjoying clean hydration at over 1 liter per minute. With a wide opening for quick fills, a compressible body that collapses as we drink, and a secure fit in most running vests, the UltraFlask+ is the minimalist solution we rely on for ultralight backpacking, racing, and all-day trail adventures.