500 mL Softflask w/ Bite Cap

(4 customer reviews)


  • This collapsible SoftFlask carries 500mL of fluid. The unique shape allows this SoftFlask to slide easily in and out of a hydration pocket. Comes with a larger diameter top to fit ice cubes and keep fluids cool. Perfect to combine with the 300mL SoftFlask to carry more fluid or electrolytes if needed. Features a silicone Sheath Bite Valve.




This collapsible SoftFlask carries 500mL of fluid. PVC & BPA free.

Additional information

Weight .1 lbs
Dimensions 15 × 10 × 3 in

4 reviews for 500 mL Softflask w/ Bite Cap

  1. Wes Faulk (verified owner)

    I entered the soft flask world with trepidation, having never used them before. But, I wanted one to use with the UltrAspire fitted race belt I also bought. This was THE bottle to start out with. The bite valve works great, and doesn’t leak, even when its jammed into my belt. The bottle itself is very tough, and has survived multiple drops onto rocky trails without springing any leaks. I will definitely be ordering more!

  2. A. Smith (verified owner)

    I bought two of these to use with my hydration pack, awesome products! I love the Softflask, you don’t need to tilt the bottles or struggle to get the last drops of liquid. The Bite Caps act as nice stoppers for any stored liquid so it only flows when you want.

    The screw tops seem to be slightly leaky, little drops if the bottle is held sideways or upside down but I keep them upright in my vest so that is not a frequent issue. Also, the leaks could be due to operator error – not threading the screw correctly.

    I use these bottles as my endurance fuel so the bottles have absorbed the color of the drink and any water that I use in the bottles has the slight taste of the drink. The bottles are used solely for my endurance drink so that is not any issue to me anyways. I will mix the drink in another container and pour it into the Softflask bottles, I find that works the best for me.

    I will definitely purchase these bottles again!

  3. Dean (verified owner)

    This is a great space saver and comfortable when worn in a vest pouch. The bite cap is great in most situations. The only thing I will say is that the bite cap is so sensitive that if it is touching anything elastic the pressure from it will cause a bit of liquid to come out of the bottle. Easy to use, light, pack-able.

  4. Dandelion Dilluvio-Scott (verified owner)

    I use these flasks in both versions of the Bronco vest. I typically carry a bottle of plain water and another with a hydration mix. I like that the bottles are semi-clear so I can see the difference between the two options. I am also very tough on my gear and often run in very technical rocky terrain for long distances where I need to filter water. These flasks have never sprung a leak no matter what surface I put them on.

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