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This item may be available in a different size, colour, scent, version or platform:
Hydrapak UltraFlask
The UltraFlask 600 flask fits easily in most hydration vest, belt or pack pockets
Flexible design shrinks as you drink, reducing water movement on the run
Includes removable/adjustable drink tube; cut to a custom length or mount bite valve directly to cap
Made of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticity
FEATURES of the Hydrapak UltraFlask The UltraFlask 600 flask fits easily in most hydration vest, belt or pack pockets Soft material conforms to any pocket for a comfortable carrying experience Flexible design shrinks as you drink, reducing water movement on the run High-flow bite valve auto-seals after each sip, eliminating annoying drips Includes removable/adjustable drink tube; cut to a custom length or mount bite valve directly to cap Large 42mm opening lets you fill the UltraFlask easily with ice and drink mixes Made of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticity Can be frozen or filled with hot water (max temp 60° C / 140° F)