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 4.9 out of 5
    Based on 48 reviews
    • 5 Stars
      45 Reviews
    • 4 Stars
      3 Reviews
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    100% of reviewers would recommend this product to a friend
    Times Used
    Rated 3 out of 5
    Quality
    Rated 4 out of 5
    Function
    Rated 4 out of 5
    Customer photos and videos
    48 Reviews
    Reviewed by Kelly B., from United States
    Verified Buyer
    I recommend this product
    Product Standouts
    • High Quality
    • Very Comfortable
    • Compact
    I use it for
    • Mountain Biking
    Rated 5 out of 5
    Review posted

    Ultraflask for the win

    I purchased these flasks to add to my Orange Mud hydration pack for longer rides when extra fluids are needed. I love that they collapse and can be easily carried without taking up a ton of space once used up. They fit perfectly in a cycling jersey pocket or in the strap pockets of the endurance hydration pack. Can be used with or without the extension tubing. These were definitely designed with cyclists in mind!

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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
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    Reviewed by Melissa L., from United States
    Verified Buyer
    I recommend this product
    Product Standouts
    • Easy to Wash
    • High Quality
    • Easy Access
    • No Bounce
    • Compact
    I use it for
    • Trail Running
    • Ultrarunning
    • Road Running
    Rated 5 out of 5
    Review posted

    The soft flasks I didn’t know I needed

    I love my Orange Mud hydration vest, but where does the Gatorade/Tail Wind/NUUN go? In a soft flask of course! It’s summer and it’s HOT. So why buy one when you can buy one for each pocket? So that’s what I did. Now during those long runs, I can carry all I need for miles and miles without stopping at an aid station and touching a thing.

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    Rated 3 out of 5
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    Rated 5 out of 5
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    Rated 5 out of 5
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    Reviewed by Stuart C., from United States
    Verified Buyer
    I recommend this product
    Rated 5 out of 5
    Review posted

    Fits perfectly

    These bottles fit perfectly in both of my vests and they’re the perfect size! Definitely recommend these soft bottles.

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    Rated 3 out of 5
    Quality
    Rated 5 out of 5
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    Rated 5 out of 5
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    Reviewed by s b., from United States
    Verified Buyer
    I recommend this product
    Product Standouts
    • Easy to Wash
    I use it for
    • Ultrarunning
    • Trail Running
    Rated 5 out of 5
    Review posted

    Easy hydration

    These flasks in the front pockets of my OM vests are my preferred way to stay hydrated on runs since I can see/feel how much fluid I have left. The flasks are durable - I’ve dropped them on rocks. I also like that you can take apart the tube and mouthpiece for cleaning.

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    Rated 5 out of 5
    Quality
    Rated 5 out of 5
    Function
    Rated 5 out of 5
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    Reviewed by Sophie, from Canada
    Verified Buyer
    I recommend this product
    Product Standouts
    • High Quality
    • Very Comfortable
    • No Bounce
    • Compact
    • No Chaffing
    I use it for
    • Trail Running
    Rated 5 out of 5
    Review posted

    Soft Flask !

    I only bought one soft flask and regretting it already, should’ve bought two flasks 🥺Just got all my ordered in this afternoon and ready to show them off tomorrow (Saturday) morning long distance run 🏃‍♀️!

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    Times Used
    Rated 1 out of 5
    Quality
    Rated 5 out of 5
    Function
    Rated 5 out of 5
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