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Ultra Running Bottles & Soft Flasks for Ultramarathon Runners

UltrAspire bottles use a BPA -free LDPE for our running bottles, which is preferred over PP for most sport applications because of its hand feel and squeeze-ability. (We know what it’s like to be a fatigued runner in the later stages of a long race trying to squeeze an impossible bottle!) We also use Tritan, when squeeze-ability is not an issue and stability is preferred, and Silicone, both of which, have great taste quality.

Ultimate Direction bottles feature the incredibly innovative Kicker Valve, which is offset for easier drinking, easy grip leak proof sealing cap, and textured finger and thumb grooves.

Salomon soft flasks by Hydrapak are flexible so compress as you drink to eliminate water bouncing/sloshing inside and reduce sucking effort. Easy to squeeze - with bite valve. Carry this soft water/gel flask in your hand, shorts pocket or race vest pouch. Carry gels, water, electrolytes and other fluids such as milkshake.
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UltrAspire COLLAPSIBLE BOTTLE ( 500mL/16oz ) Soft Flask with Tube UltrAspire COLLAPSIBLE BOTTLE Soft Flask with Tube

[ UltrAspire Soft Flask with Tube: Collapsible Bottle 500mL/16oz Capacity ]
Fits in the front pockets of your vest for quick access and hands-free delivery. The 12" / 30cm tube can be trimmed to any preferred length.

Our Price: £16.99
UltrAspire ULTRAFLASK ( 550mL/18oz ) Soft Bottle UltrAspire ULTRAFLASK Soft Bottle ( 550mL/18oz )

[ UltrAspire Soft Bottle: UltraFlask 550mL/18oz Capacity ]
The Ultra Flask is a curved, flexible / super-squeezable, easy stowing bottle that is a hybrid between a soft flask and a hard bottle.

Our Price: £13.99
Inov-8 0.25 SoftFlask ( 250mL/8.5oz ) Inov-8 0.25 SoftFlask ( 250mL/8.5oz )

[ Inov-8 Soft Flask : 0.25 250mL/8.5oz Capacity ]
250ml soft flask to carry water or gels. Simply remove all of the air to remove bounce. The flexible flask can be compressed down once water / gel has been consumed.

Our Price: £10.80
Inov-8 0.5 SoftFlask ( 500mL/16oz ) Inov-8 0.5 SoftFlask ( 500mL/16oz )

[ Inov-8 Soft Flask : 0.5 500mL/16oz Capacity ]
500ml soft flask to carry water or gels. Simply remove all of the air to remove bounce. The flexible flask can be compressed down once water / gel has been consumed.

Our Price: £13.50
Inov-8 0.5 SoftFlask with Tube ( 500mL/16oz ) Inov-8 0.5 SoftFlask with Tube ( 500mL/16oz )

[ Inov-8 Soft Flask with Tube : 0.5 500mL/16oz Capacity ]
500ml soft flask with straw/tube and Hydrapak Blaster Valve. Simply remove all of the air to remove bounce. The flexible flask can be compressed down once water / gel has been consumed. The 12" / 30cm tube can be trimmed to any preferred length.

Our Price: £16.99
Hydrapak ULTRAFLASK XL 600ml Soft Flask with Tube Hydrapak ULTRAFLASK XL 600ml Soft Flask with Tube

[ Hydrapak Soft Flask with Tube: UltraFlask XL 600ml ]
Use with or without the tube, you have the option to mount the bite valve directly to cap. Customise and cut the tube to the preferred length.

Our Price: £19.98
Hydrapak ULTRAFLASK 450ml Soft Flask with Tube Hydrapak ULTRAFLASK 450ml Soft Flask with Tube

[ Hydrapak Soft Flask with Tube: UltraFlask 450ml ]
Use with or without the tube, you have the option to mount the bite valve directly to cap. Customise and cut the tube to the preferred length.

Our Price: £17.45
Hydrapak SF750 SoftFlask ( 750mL/25oz ) Hydrapak SF750 SoftFlask ( 750mL/25oz )

[ Hydrapak SoftFlask: SF750 750mL/25oz Capacity ]
Highly collapsible 750mL bottle that incorporates an easy to use bite valve with a locking cap. Dust cap included.

Our Price: £17.99
Hydrapak SF500 SoftFlask ( 500mL/16oz ) Hydrapak SF500 SoftFlask ( 500mL/16oz )

[ Hydrapak SoftFlask: SF500 500mL/16oz Capacity ]
Highly collapsible 500mL bottle that incorporates an easy to use bite valve with a locking cap. Dust cap included.

Our Price: £14.99
Hydrapak SF350 SoftFlask - Orange ( 350mL/12oz ) Hydrapak SF350 SoftFlask - Orange ( 350mL/12oz )

[ Hydrapak SoftFlask: SF350 350mL/12oz Capacity ]
Highly collapsible 350mL bottle that incorporates an easy to use bite valve with a locking cap. Dust cap included.

Our Price: £13.98
Hydrapak SF250 SoftFlask ( 250mL/8.5oz ) Hydrapak SF250 SoftFlask ( 250mL/8.5oz )

[ Hydrapak SoftFlask: SF250 250mL/8.5oz Capacity ]
The original lightweight, flexible, collapsible SoftFlask bottle with soft bite valve.

Our Price: £12.98
Hydrapak SF150 SoftFlask - Orange ( 150mL/5.1oz ) Hydrapak SF150 SoftFlask - Orange ( 150mL/5.1oz )

[ Hydrapak SoftFlask: SF150 150mL/5.1oz Capacity ]
The original lightweight, flexible, collapsible SoftFlask bottle with soft bite valve.

Our Price: £10.98
Ultimate Direction BODY BOTTLE Soft Flask 420mL/14.2oz Ultimate Direction BODY BOTTLE Soft Flask 420mL/14.2oz

[ Ultimate Direction Soft Flask: BODY BOTTLE 420mL/14.2oz ]
420mL soft flask with Hydrapak Blaster valve. Conforms to your body. Reduces sloshing, bouncing, and rubbing.

Our Price: £13.50
Ultimate Direction BODY BOTTLE PLUS Soft Flask 500mL/17oz Ultimate Direction BODY BOTTLE PLUS Soft Flask 500mL/17oz

[ Ultimate Direction Soft Flask: BODY BOTTLE PLUS 500mL/17oz ]
Larger 500mL soft flask with cap lock and big opening, allowing ice cubes or powdered energy mix to be easily added

Our Price: £17.99
Salomon Soft Flask 500mL/16oz Salomon Soft Flask 500mL/16oz

[ Salomon Soft Flask: 500mL/16oz Capacity ]
500mL Soft flask by Salomon/Hydrapak. Flexible so compresses as you drink to eliminate water bouncing/sloshing inside and reduce sucking effort. Easy to squeeze - with bite valve.

Our Price: £17.99
Sale Price: £15.98
Savings: £2.01
Salomon Soft Flask 250mL/8oz Salomon Soft Flask 250mL/8oz

[ Salomon Soft Flask: 250mL/8oz Capacity ]
250mL Soft flask by Salomon/Hydrapak. Flexible so compresses as you drink to eliminate water bouncing/sloshing inside and reduce sucking effort. Easy to squeeze - with bite valve.

Our Price: £14.99
Salomon Soft Flask 150mL/5oz Salomon Soft Flask 150mL/5oz

[ Salomon Soft Flask: 150mL/5oz Capacity ]
150mL Soft flask by Salomon/Hydrapak. Flexible so compresses as you drink to eliminate water bouncing/sloshing inside and reduce sucking effort. Easy to squeeze - with bite valve.

Our Price: £11.99
Inov-8 FLAT Running Bottle 500mL Inov-8 FLAT Bottle 500mL

[ Inov-8 Bottle: Flat 500mL ]
A uniquely designed flat running bottle which hugs the body to reduce unwanted movement.

Our Price: £4.99
UltrAspire HUMAN8 ERGO Running Bottle UltrAspire HUMAN8 ERGO Bottle

[ UltrAspire Bottle: Human8 Ergo ]
8 oz ( 0.24L ) capacity. Hand friendly and low profiled, polarity system equipped, easily carried in the hand or streamlined against the torso. Patent pending angled design with just the right amount of squeeze and gravity assisted flow.

Our Price: £6.00
UltrAspire HUMAN16 ERGO Running Bottle UltrAspire HUMAN16 ERGO Bottle

[ UltrAspire Bottle: Human16 Ergo ]
16 oz ( 0.47L ) capacity. Uniquely sized for the hour long workout, Ergo hand friendly and low profiled, polarity system equipped, easily carried in the hand or streamlined against the torso. Patent pending angled design with just the right amount of squeeze and gravity assisted flow.

Our Price: £7.00
UltrAspire HUMAN20 Running Bottle UltrAspire HUMAN20 Bottle

[ UltrAspire Bottle: Human20 ]
20 oz ( 0.6L ) capacity. Revolutionary shaped bottle with patent pending angled design and hand friendly shape enables naturally positioned access and gravity assisted delivery.

Our Price: £8.00
UltrAspire HUMAN20 F Running Bottle UltrAspire HUMAN20 F Bottle

[ UltrAspire Bottle: Human20 F ]
20 oz ( 0.6L ) capacity with finger loop. Revolutionary shaped bottle with patent pending angled design requires less tilt, enables naturally positioned access and gravity assisted delivery. Plus: the perfect finger loop for easy secure grab and return to holster.

Our Price: £8.00
UltrAspire HUMAN26 Running Bottle UltrAspire HUMAN26 Bottle

[ UltrAspire Bottle: Human26 ]
26 oz ( 0.77L ) capacity with finger loop. More capacity developed to match the capacity of a race vest. Revolutionary shaped bottle with patent pending angled design requires less tilt, enables naturally positioned access and gravity assisted delivery. Plus: the perfect finger loop for easy secure grab and return to holster.

Our Price: £9.00
UltrAspire HUMAN 850ml Running Bottle UltrAspire HUMAN 850ml Bottle

[ UltrAspire Bottle: Human 850ml ]
0.85L capacity. BPA free. Finger loop of super-strong polycarbonate insert molded to Tritan flat oval-shaped bottle which feels better in the hand and fits better on the side of a pack than standard bottles. Non-leaking, classic style, cap with rubber grip. Includes all the ergonomic benefits of our other bottles.
Colours: Green, Clear, Blue, Red

Our Price: £12.98
Ultimate Direction 20oz / 0.6L Bottle with Kicker Valve Ultimate Direction 20oz / 0.6L Bottle with Kicker Valve

[ Ultimate Direction Bottle: 20oz / 0.6L with Kicker Valve ]
Featuring the incredibly innovative Kicker Valve, which is offset for easier drinking, easy grip leak proof sealing cap, and textured finger and thumb grooves
Colours: White

Our Price: £8.99
Ultimate Direction 26oz / 0.77L Bottle with Kicker Valve Ultimate Direction 26oz / 0.77L Bottle with Kicker Valve

[ Ultimate Direction Bottle: 26oz / 0.77L with Kicker Valve ]
Featuring the incredibly innovative Kicker Valve, leak proof sealing cap, and FDA-approved Polyethylene.
Colours: White

Our Price: £9.98
Ultimate Direction Replacement Kicker Cap Ultimate Direction Replacement Kicker Cap

[ Ultimate Direction Bottle: 20oz / 0.6L with Kicker Valve ]
Add the favorite Kicker Valve to any standard water bottle.

Our Price: £5.99
Ultimate Direction 10oz / 0.3L Bottle Ultimate Direction 10oz / 0.3L Bottle

[ Ultimate Direction Bottle: 10oz / 0.3L ]
Angled top and lightweight design.

Our Price: £4.49
Ultimate Direction 4oz / 118 mL Gel Flask Ultimate Direction 4oz Gel Flask

[ Ultimate Direction Gel Flask: 4oz / 118 mL ]

Our Price: £3.74
   
 
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Ultra Running Bottles and Soft Flasks for Ultramarathon Runners
UltrAspire

What Makes our Handhelds / Bottles Better?

Human Bottles: Advanced Bottles that do more than just hold liquids. Patent pending shape and angled top designed to deliver fluids from either hand with the head and entire body more naturally positioned, requiring less effort and achieving greater flow. Polarity system™ also holds and stabilizes the bottle in the pack enhancing quick access and return.

1. Ergonomics: Our special shaped and angled running bottles may seem odd at first, until the mechanics of function is understood: First, the shape accommodates and feels good in your hand. Second, angles help deliver the fluids without the requirement of dramatically tilting back your head to allow for liquid delivery.

2. Polarity: Magnetic energy is lighter weight, and saves time and effort retrieving, stowing, and keeping hydration bottles in your pack; it may also impart substantial health benefits to the liquid enclosed. We did some research, we are convinced, that like water emerging from a mountain spring infused with the magnetic energy of the earth—it’s simply healthier for the human body.

3. LDPE: Our squeezable bottles are made of low-density polyethylene. This is a BPA-free material so you don’t have to worry about chemicals leaching into your fluid.

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The ULTRAmarathonRuning Store is the UltrAspire UK and Ireland online supplier/dealer/distributor/retailer. We also ship internationally, including to the US & Canada, Europe, Australia, New Zealand and the rest of the world. Product pages include links to UltrAspire reviews and UltrAspire videos. If you have any question or request please Contact Us.