UltraFlask™ Speed 500 ML Soft Flask

Optimal running hydration, soft bottle design fits in vest and pack pockets with the added feature of the SpeedFill™ cap.
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. Topped with a new feature, the SpeedFill™ cap, makes aid station refills a breeze. Ultra light weight, ultra useful
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. 

HydraPak Ultraflask Speed 500 ml Hydration

Ultraspire introduces yet another milestone in hydration history! the ultraflask 550 hybrid bottle has all the benefits of a softflask but with the conveniences of a hard bottle. The bottle is designed to sit as close to the body as possible to minimize movement when full. the soft-body shape helps with rapid access comfort and squeeze. the large cap opening easily fits ice cubes and is covered by a high flow push/pull valve. Made in the usa.

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HydraPak UltraFlask Speed 500 ml Preview

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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.

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Ultraspire introduces yet another milestone in hydration history! the ultraflask 550 hybrid bottle has all the benefits of a softflask but with the conveniences of a hard bottle. The bottle is designed to sit as close to the body as possible to minimize movement when full. the soft-body shape helps with rapid access comfort and squeeze. the large cap opening easily fits ice cubes and is covered by a high flow push/pull valve. Made in the usa.

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