Soft Flasks

We pioneered this category and continue to evolve it with light and nimble designs. Our flasks are designed to keep you performing at your peak. From nutrition needs to quick hydration..
Designed for the minimalist runner, the SkyFlask Speed features an adjustable hand strap and innovative, padded thumb loop to hold the flask securely in either hand without gripping or squeezing. Topped with our SpeedFill cap for quick refills on the go..
Keep your water colder longer. An insulated version of our handheld flask, the 500ml SkyFlask IT incorporates our IsoBound™ technology. Designed to keep liquids at an ideal temperature 38% longer than a standard water bottle..
Simpler, faster and cleaner, this lightweight 150 ml collapsible gel flask allows for instant nutrition on your most challenging expeditions. Just fill it with up to 4 gel servings, squeeze it empty and you’re ready to take on the world..
Whether it’s trails, rivers or slopes, nutrition is just a bite away. The collapsible, lightweight SoftFlask 250 is easy to fill and even easier to consume with our soft silicone bite valve. And since it holds up to 8 servings of your favorite nutrition concoction, you can go the distance without running out..
Keep your water cool and prevent bottle sweat. An insulated version of our handheld SkyFlask™ Speed 350ml soft bottle, the SkyFlask IT Speed 350ml features our IsoBound™ technology. Engineered to keep fluids at an ideal temperature 38% longer than a standard flask. .
Keep your water cool and prevent bottle sweat. An insulated version of our handheld SkyFlask™ 500ml soft bottle, the SkyFlask IT 500ml features our IsoBound™ technology. Engineered to keep fluids at an ideal temperature 38% longer than a standard flask. .
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. .
Go big. The largest of our ultra-light series, the UltraFlask Speed 600 ml holds more so you can go the distance. Its soft material allows it to fit snugly in most vest pockets and it shrinks as you drink to minimize water movement. Topped with our newest SpeedFill™ cap feature that makes aid station refills a breeze.  .
SpeedCup is the quick and easy watering solution; whether you're racing in the Rockies or backpacking in the Himalayas. It's lightweight, easy to hold, reusable and collapsible so you can tuck it almost anywhere. .
Outfit your favorite running vest with new hydration and nutrition flasks!  This bundle includes two of our best-selling UltraFlask Speed 500ml, one for each front pocket. Our smaller SoftFlask 250ml is the ideal size for smaller pockets or for keeping your liquid nutrition easily accessible. Use the SoftFlask 150ml to fill with up to five energy gel servings, eliminating sticky gel wrappers and single-use waste.  Included: Two UltraFlask Speed 500ml SoftFlask 250ml SoftFlask 150ml Bite Valve Sheath 2-Pack

The 500mL soft flask—made by Hydrapak—is ready for your next adventure. Designed for our Distance Packs, our 2-D pinch weld construction includes a soft, oval shaped shoulder for minimal bulk while being worn, and will meet your hydration needs without weighing you down.

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