UltrFlask™ WMX 500ml Soft Flask

Optimal running hydration, soft bottle design fits in vest and pack pockets.
Built to fit wide and short vest and pack pockets, our UltraFlask™ WMX 500ml features a 3D welded bottom to create a shorter flask and stronger weld.  The easy to fill wide cap is ideal for adding ice and nutrition mixes.
Replacing your bite valve from time to time helps maintain your hydration system. HydraPak's Bite Valve Sheaths provide a soft bite and are made of durable silicone. Perfect for chewers or to keep in your emergency gear kit with your bandaids and duct tape. Fits and replaces all HydraPak bite valves on our Reservoirs, SoftFlasks, and UltraFlasks.  *Please note - Blaster Sheaths DO NOT fit on the new Comet Bite valves and are not compatible with any of the new 2023 reservoirs. Please purchase Comet Bite Valve Sheaths HERE.
When it comes to hydrating equipment, heavy duty use needs heavy duty cleaning. Bottle Bright tablets are readily biodegradable, safe & environmentally friendly, made to keep all your containers clean and operating at optimum performance. Contains 12 tablets. Use one tablet per liter of water. 

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