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Hydrapak Ultraflask 250

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Whether it’s trails, rivers or slopes, nutrition is just a bite away. The collapsible, lightweight SoftFlask 250 is easy to fill and even easier to consume with our patented soft silicone bite valve. It can be integrated into a variety of packs, vests, belts, even PFDs. Go the distance without running out of fuel. 28mm opening allows you to store 250ml of liquid of 8 servings+ of gel.


  • Capacity: 250ml
  • Materials: TPU, HDPE, PP, Silicone
  • 100% BPA & PVC free
  • Welded seams throughout for durability
  • Designed to fit comfortably in your running vest, pack or belt pocket
  • High-flow bite valve auto seals after each sip
  • Max operating temperature: 60°c
  • Dimensions: 230 x 75 mm
  • Weight24g