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. 

Scott Soft Bottle Ultraflask 500 ML

SkyFlask™ Speed 500 ML SoftFlask

The UltraFlask™ is an ideal compliment to the running hydration packs. You can quickly stash the flask in your pockets for access on the go.

Ultraflask, 500ml soft flask, 17 oz, by Orange Mud

UltraFlask™ Speed 500 ML Soft Flask

SCOTT UltraFlask 500 ML Soft Bottle

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.

Hydrapak Ultraflask Speed 600 ml Malibu Blue

HydraPak UltraFlask Speed 500ml 2-Pack (500 ml/17 oz), Malibu Blue & Bite Valve Replacement Sheath - for Hydration Reservoir Soft Flask - 2 Pack, Clear (A181) : Everything Else

SoftFlask™ WMX 500ml Soft Flask

HydraPak UltraFlask Speed 500 ml Preview

SOFT FLASK 500 ML / 17 FL OZ WITH STRAW / ULTRA 100K + SERIES – WEIS USA / AMÉRICA

Customer reviews: HydraPak UltraFlask Speed 500ml 2-Pack - Collapsible Soft Flask Water Bottle for Hydration Vests and Running Packs with Easy Open Cap (500 ml/17 oz), Malibu Blue