SoftFlask™ 150 ML


SoftFlask vs. gel packets = no contest. 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 5 gel servings, squeeze it empty and you’re ready to take on the world.


  • The SF150 flask fits easily in most hydration vest, belt or pack pockets
  • Soft material conforms to any pocket for a comfortable carrying experience
  • Designed to carry and dispense energy gels
  • High-flow nozzle makes fueling for long efforts more convenient and less sticky
  • Flask holds 5 servings of energy gel
  • Made of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticity
  • Can be frozen or filled with hot water (max temp 60° C / 140° F)
  • Easy to clean 28mm cap; top-rack dishwasher safe
  • Safe and reliable, 100% BPA & PVC free


150 ml / 5 fl oz

18 g / 0.6 oz

165 mm / 6.5 in x 71 mm / 2.8 in

Thermoplastic Polyurethane; HDPE

Frequently Asked Questions

How do I clean a SoftFlask?

All of our SoftFlasks are top-shelf dishwasher safe so they are very simple to keep clean. If you are fueling with energy gels or mixing your own nutrition mix, we recommend using a bottle brush or Bottle Bright to clean out any residue. The bite valves and tubes can easily be removed for cleaning as well. Our Cleaning Kit provides you with both a tube brush and tablet of bottle bright to soak your valves in.

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Customer Reviews

By Bananas


Great product except the nozzle and cap both unscrew in the same direction. This can cause you to accidentally unscrew both and cause a right mess. Fix this and it would be a winner

By Bobbit

Slippery lid

Love the idea and the flask is great but the twist cap is too slippery for my sweaty hands to open on the run.


good for energy gel

Excellent for putting energy gel into - definitely recommend!

By Em

like the twist cap a lot

Really love the twist cap! Really easy to put my nutrition into for long runs

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