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 71 reviews
    • 5 Stars
      68 Reviews
    • 4 Stars
      3 Reviews
    • 3 Stars
      0 Reviews
    • 2 Stars
      0 Reviews
    • 1 Star
      0 Reviews
    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
    71 Reviews
    Reviewed by Jennifer C., from United States
    Verified Buyer
    I recommend this product
    Product Standouts
    • Easy to Wash
    • High Quality
    • Easy Access
    I use it for
    • Road Running
    Rated 5 out of 5
    Review posted

    No leaks, easy to use

    I added these to my Endurance Hydration pack and use them to hold electrolytes (saving the big bladder for straight up water). They fit perfectly and didn't leak even a drop during a recent half marathon. Can't go wrong with these.

    Loading...
    Times Used
    Rated 1 out of 5
    Quality
    Rated 5 out of 5
    Function
    Rated 5 out of 5
    Was this helpful?
    Reviewed by Lauren K., from United States
    Verified Buyer
    I recommend this product
    Product Standouts
    • Easy to Wash
    • Very Comfortable
    • No Bounce
    I use it for
    • Ultrarunning
    Rated 5 out of 5
    Review posted

    Good experience

    Great products. Fast shipping. Would buy from again for sure.

    Loading...
    Times Used
    Rated 5 out of 5
    Quality
    Rated 5 out of 5
    Function
    Rated 5 out of 5
    Was this helpful?
    Reviewed by Paul S., from United States
    Verified Buyer
    I recommend this product
    Product Standouts
    • Easy to Wash
    • High Quality
    I use it for
    • Trail Running
    • Marathon
    • Road Running
    Rated 5 out of 5
    Review posted

    Soft Flask

    Seems to work well with the back. I figured out to blow air in the flask if you need to get it back into the hole so it’s no so limp. Then let the air out.

    Loading...
    Times Used
    Rated 3 out of 5
    Quality
    Rated 4 out of 5
    Function
    Rated 4 out of 5
    Was this helpful?
    Reviewed by Tanya B., from United States
    Verified Buyer
    I recommend this product
    Product Standouts
    • Easy to Wash
    • High Quality
    • Very Comfortable
    I use it for
    • Marathon
    Rated 5 out of 5
    Review posted

    Soft flask

    This flask is perfect when I’m carrying different hydration than what’s in my hydration vest. Everything by orange mud is awesome and worth buying

    Loading...
    Times Used
    Rated 2 out of 5
    Quality
    Rated 5 out of 5
    Function
    Rated 5 out of 5
    Was this helpful?
    Reviewed by Samantha O., from United States
    Verified Buyer
    I recommend this product
    Product Standouts
    • Easy to Wash
    • High Quality
    • No Bounce
    • Easy Access
    • Compact
    I use it for
    • Trail Running
    • Road Running
    Rated 5 out of 5
    Review posted

    Awesome bottles

    This is my first time using flasks with the long straws and I absolutely love them. Nice size too.

    Loading...
    Times Used
    Rated 2 out of 5
    Quality
    Rated 5 out of 5
    Function
    Rated 5 out of 5
    Was this helpful?