Montane UltraFlask 500ml

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The UltraFlask 500ml is a compact, lightweight and BPA free water bottle with a soft bite valve. Ideal for trail running but versatile enough for a range of sports.

Montane says

The Montane UltraFlask™ 500ml by Hydrapak® is a compactable flask for quick, easy hydration when on the move. The flask compresses for easy storage and prevents water from sloshing. The new wider top opening allows for quick and easy filling / cleaning whilst the high performance soft silicone bite valve provides a high flow rate.

Our Verdict

Montane’s UltraFlask 500ml is a durable, flexible flask with a soft feel bite valve. Unlike other flasks, its deigned to compress as you drink to prevent the bouncing of fluids. It has a wide neck opening that allows you to insert powders and gels in as well as water. The durable outer has a good grip which will help you squeeze out all the liquids, and once you’ve consumed the contents, it can be easily packed into a pocket. It’s designed to fit into running packs’ shoulder/chest stash pockets.

– Reviewed by Ultralight Outdoor Gear

Features

• Soft, flexible TPU flask body 
• 3D base 
• 500ml liquid capacity 
• Wide screw top opening 
• High flow rate soft silicone bite valve
• Dishwasher safe (top rack) 
• BPA free/ PVC free / meets or exceeds FDA and EU regulations
• Activities: Trail Running / Fastpacking

Specifications

• Weight: 34g
• Capacity: 500ml
• Material: TPU

Help & advice:

• What does BPA Free Mean?