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In a hurry? Order within with SPRINT delivery to arrive by Monday (excluding holidays)(Subject to Holiday Opening Hours)
HydraPak Ultraflask 500ml - achilles heel
HydraPak Ultraflask 500ml - achilles heel
HydraPak Ultraflask 500ml - achilles heel
HydraPak Ultraflask 500ml - achilles heel
HydraPak Ultraflask 500ml - achilles heel
HydraPak Ultraflask 500ml - achilles heel
HydraPak Ultraflask 500ml - achilles heel
HydraPak Ultraflask 500ml - achilles heel
HydraPak Ultraflask 500ml - achilles heel
HydraPak Ultraflask 500ml - achilles heel
HydraPak Ultraflask 500ml - achilles heel
HydraPak Ultraflask 500ml - achilles heel

HydraPak Ultraflask 500ml

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    • £18.00
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    • Part of our ultra-light series, the 500 ml 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 minimize water movement and it can be used with or without the tube. Ultra light weight, ultra useful.

      COMFORTABLE FIT - Soft material conforms to most hydration vests, belts, or pack pockets

      COMPRESSIBLE - Flexible design shrinks as you drink reducing water movement

      MULTI CAP - Includes a bite valve cap and an adjustable drink tube cap

      Features:

      • A great hydration addition or replacement to your running vest, pack, or belt pocket
      • Vest-pack fit provides bounce-free stability and a flexible flask shoulder to prevent chafing so you can focus on FKT's and PR's
      • High-flow bite valve auto-seals after each sip, eliminating annoying drips
      • Large standard 42mm opening lets you fill the UltraFlask easily with ice and drink mixes
      • Customize your cap with two options depending on your run or vest, directly mount your bite valve or use the straw cap (4 in / 100 mm)
      • Made of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticity
      • 100% BPA & PVC free, wide working temperature range (can be frozen - max temp 60° C / 140° F)
      • Weight: 54 g / 1.9 oz
    • We offer free tracked UK delivery on all orders over £25, and free tracked EU delivery on orders over £200. You can also choose free Click & Collect from our Glasgow store, and catch up with our running experts in-store when you pop in to collect your order.  Find out more.
    • Not quite sure about your purchase? No problem - just return it to us, free of charge (UK), within 28 days for a full refund with our Royal Mail Tracked Service. We also offer free exchanges if you need to swap your size.  Find out more.
    • If you are purchasing your shoes from outside the UK then please note that all shoe sizes on this site are displayed in the UK format. Also please note that different brands can vary in size. Some can be larger or smaller made than others. If you're not sure about your international shoe size then check out the conversion charts for an approximate equivalent in US and EU shoe sizes.