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.
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

With the lightweight SOFT FLASK 150ml/5oz STD 28, stay hydrated and energized on the move as the kilometers start to kick in. Shrinking as you drink

SOFT FLASK 150ml/5oz 28

Trail Runner™ Soft Flask

Best Running Backpacks, Vests & Hydration Flasks

Soft Flask 500ml - Silva – Point 65 Kayaks US

We’ve adapted our classic Soft Flask with dual-skin insulation to keep your water in liquid form in winter. The new bite valve evacuates any ice

SOFT FLASK 400ml/13oz INSULATED 42

* Liquid capacity: 16 oz (500 mL) * Material: PE/EVA (BPA/PVC free) * Details: Can be frozen or filled with hot liquid (Max temp. 140ºF/60ºC) *

Soft Flask Water Bottle - 16 oz

Hydrapak Soft Flask 750ml Blue

Soft Flasks. My quick guide to flask happiness. It's a thing.

SoftFlask™ WMX 500ml Soft Flask

Grippy with a high-flow valve the SOFT FLASK 250ml/8oz 28 keeps you hydrated on all your shorter runs so you can explore train and race in optimum conditions. The new design also slots perfectly into the PREDICT SKIN 2 vest shrinking as you drink to limit water bounce.

Salomon Soft Flask 250 ml /8 oz 28 Clear Blue

Features:●Healthful and eco-friendly material: PVC-free and BPA-free●Leak-proof bite valve●Soft and packable: easy to carry around●Liquid temperature

Kailas Collapsible Water Bottles Soft Flasks 500ML

Grippy with a high-flow valve, the SOFT FLASK 250ml/8oz 28 keeps you hydrated on all your shorter runs, so you can explore, train and race in optimum

Bottle Salomon SOFT FLASK 250ml/8oz 28