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Hydrapak Ultraflask 500

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Part of their ultra-light series, the Ultraflask 500 ml from Hydrapak is so light, you might forget you brought it. Weighing in at just over an ounce, it’s optimal hydration, no matter what kind of runner you are. Its pliable material conforms to most pockets, it shrinks as you drink to minimise water movement and it can be used with or without the tube. Ultra light weight, ultra useful.


  • Capacity: 500ml
  • 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: 255 x 60mm
  • Weight 54g