The UltraFlask™ 500 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: 500ml / 17oz
  • WEIGHT: 1.4 oz (40 g)
  • DIMENSIONS:  7.25 x 2.6 (20.96cm x 6.6cm)
  • MATERIAL: 0.25 mm TPU, HDPE, 100% BPA and PVC Free

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 17 reviews
  • 5 Stars
    16 Reviews
  • 4 Stars
    1 Review
  • 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
Customer photos and videos
17 Reviews
Reviewed by Wendy T., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Easy to Wash
  • High Quality
  • Very Comfortable
  • No Chaffing
  • Easy Access
I use it for
  • Trail Running
  • Road Running
Rated 5 out of 5
Review posted

Just What I Needed

I have a hydration vest which I love (from another company) except the bottles are too small. The 500 ml straw bottles from Orange Mud fit in it perfectly & provide the extra water I need for a longer hike/walk w/o having to carry a pack w/ a bladder. So far I'm very happy with this purchase.

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Rated 2 out of 5
Quality
Rated 5 out of 5
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Rated 5 out of 5
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Reviewed by kevin r., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Easy to Wash
  • High Quality
I use it for
  • Trail Running
  • Ultrarunning
  • Marathon
  • Mountain Biking
  • Road Running
Rated 5 out of 5
Review posted

Ultraflask, 17oz

Got an extra flask, 17oz. Quality product and no leaks. The bite valve is awesome too.

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Times Used
Rated 5 out of 5
Quality
Rated 5 out of 5
Function
Rated 5 out of 5
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Reviewed by Tim G., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Very Comfortable
  • High Quality
I use it for
  • Trail Running
  • Mountain Biking
  • Road Running
Rated 4 out of 5
Review posted

Ultra flask

The original one that came with my pack had a small leak. I purchased two ultra flasks and they appear to be a little thicker and fits perfectly into my pack. The bite straw is a nice added touch and holds the perfect amount of fluids for my runs or hikes.

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Times Used
Rated 2 out of 5
Quality
Rated 4 out of 5
Function
Rated 4 out of 5
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Reviewed by Drew 6., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Easy to Wash
  • High Quality
  • Very Comfortable
  • No Bounce
  • Easy Access
Rated 5 out of 5
Review posted

Excellent water bottle

It is soft sided not rigid which works much better if wearing in a hydration pack. Comes with a straw that won't least. Just bite on the end to open the valve. Excellent product.

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Times Used
Rated 2 out of 5
Quality
Rated 5 out of 5
Function
Rated 5 out of 5
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Reviewed by Zachary K., from United States
Verified Buyer
I recommend this product
Product Standouts
  • Easy to Wash
  • High Quality
  • Compact
  • Easy Access
I use it for
  • Trail Running
  • Ultrarunning
  • Road Running
Rated 5 out of 5
Review posted

Amazing

I use these for electrolyte drinks and to have them right there in front of me is amazing.

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