UltraFlask 500ml: Flexible, No-Slosh Hydration
The UltraFlask 500ml soft flask is your perfect hydration companion, designed for seamless integration with Orange Mud packs. Its body-conforming, super-soft material fits any pocket, providing on-the-fly access with a convenient 4" hose.
Dynamic Performance, Easy Hydration
This flask shrinks as you drink, actively reducing water sloshing for a quiet, stable carry. Its versatile design allows use with or without the tube, even mounting the bite valve directly to the cap. Fill it easily with ice cubes thanks to the wide 42mm sport cap.
Built Tough for Any Adventure
Durable and resilient, the UltraFlask can be frozen or filled with warm water (up to 140°F / 60°C). Made from 0.25mm TPU, HDPE, it's 100% BPA/PVC-free and comes with a No-Leak™ Guarantee.
Capacity: 500ml (17oz) | Weight: 1.4 oz. Your go-to for light, versatile, and secure hydration.
Features
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BODY CONFORMING SOFT FLASK - Soft flask, super soft material conforms to any pocket
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ANTI-SLOSH - Shrinks as you drink, reducing water sloshing
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VERSATILE DESIGN - Use with or without tube, option to mount bite valve directly to cap
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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
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CAPACITY: 500ml / 17oz
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WEIGHT: 1.4 oz (40 g)
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DIMENSIONS: 7.25 x 2.6 (18.41cm x 6.6cm)
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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.
Frequently Asked Questions
What makes the UltraFlask 500ml different from a regular water bottle?
The UltraFlask is a soft, body-conforming flask that shrinks as you drink,
reducing sloshing and bounce for a more stable carry. Its compact design
fits easily into pockets and integrates seamlessly with Orange Mud hydration packs.
Can I use the UltraFlask with hot or frozen liquids?
Yes. The UltraFlask safely handles liquids up to 140°F (60°C) and can also
be frozen for cold hydration during long outdoor adventures without damage.
Is the UltraFlask compatible with all Orange Mud packs?
Absolutely. It’s designed to work with all Orange Mud hydration packs,
and it can also be used independently or with the tube detached for versatile use.
How do I clean and maintain my UltraFlask?
Rinse before first use and after each workout. For deeper cleaning, place
it on the top rack of your dishwasher. The hose can be removed by gently
pulling it off the cap for a thorough clean.
Does the UltraFlask come with a leak guarantee?
Yes. The UltraFlask is backed by Orange Mud’s No-Leak™ Guarantee, providing
durable and reliable hydration performance for all your outdoor activities.
