The UltraFlask™ 600 soft flask is an ideal compliment to the Endurance Pack, HydraQuiver Vest Packs, Gear Vest, Adventure Pack and PFV series of Orange Mud products. You can quickly stash the flask in your front chest pocket for access on the fly plus it comes with an optional use 4" hose. Quickly take it off if you just want the bite valve, or if you want the hose leave it as is! 

Features

  • BODY CONFORMING SOFT FLASK - Soft flask, super soft material conforms to any pocket
  • ANTI-SLOSH - Shrinks as you drink, reducing water sloshing
  • VERSATILE DESIGN - Use with or without tube, option to mount bite valve directly to cap
  • FULL SIZE ICE CUBE FRIENDLY - 42 mm sport cap with silicone bite-valve
  • Can be frozen or filled with warm water (max temp 140°F / 60°C)
  • Durable, built for a lifetime of tough use, No-Leak™ Guarantee

    Specifications

    • CAPACITY: 600ml / 20 fl oz
    • WEIGHT: 1.5 oz (43 g)
    • DIMENSIONS:  8.25 x 2.6 (20.96cm x 6.6cm)
    • MATERIAL: 0.25 mm TPU, HDPE

    Care Instructions

    • Rinse before use. Dishwasher safe (top rack recommended).
    • Note that the hose is held in place by a press fit plug on the bottom of the cap. If you want to take it apart to clean, just pull the hose firmly off the cap, being careful not to lose the plug. 
    average rating 5.0 out of 5
    Based on 33 reviews
    • 5 Stars
      32 Reviews
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    100% of reviewers would recommend this product to a friend
    Times Used
    Rated 3 out of 5
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    Rated 4 out of 5
    33 Reviews
    Rated 5 out of 5
    Review posted

    First ultra

    I just did my first ultra and it worked perfectly! Thank you!!

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    Rated 5 out of 5
    Review posted

    Excited

    I first got close-up experience with soft flasks while crewing & pacing a friend and realized I had to get one to try. I always carry a bottle in addition to my water bladder for my drinkable calories/carbs and it's pretty awesome to not have to carry it in my hand, and not even have to pull it out for a drink. I'll be curious to see if the design is prone to mold after lots of sugary uses. Cheers.

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    Rated 5 out of 5
    Review posted

    Collapsable bottle

    It's great that the opening is wide very easy to clean.

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    Rated 2 out of 5
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    Rated 5 out of 5
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    Rated 5 out of 5
    Review posted

    Best flask on the market

    I have several of these , best ones on the market, I purchased this after a few others on the market let me down. The orange mud flask will be the only ones I use these racing season, thank you

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    Rated 5 out of 5
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    Rated 5 out of 5
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    Rated 5 out of 5
    Review posted

    Great bottles

    Really nice collapsible bottles, no leaks, easy to use, wash, store.

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    Rated 4 out of 5
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    Rated 5 out of 5
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    Rated 4 out of 5
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