Precision Hydration | Flow Flask 300 | Soft Flask | 500ML

The Precision Hydration Flow Flask 300 is specifically designed for use with Flow Gel, allowing you to easily track your carbohydrate intake and accurately achieve your goals. With a capacity for a full pouch of Flow Gel (300g carbs), this is the ideal soft flask for long training sessions and races.

At just 29 grams, the Flow Flask 300 is ultralight and designed for performance. The quick-bite valve ensures optimal flow without straining your teeth, while the bottle shrinks as you drink – no more sloshing while walking. Thanks to the scale and fill level markers, you can easily mix your drinks and keep track of your energy intake.

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⭐ Key Benefits

• 💧 Capacity for 300g Flow Gel – perfect match with Precision Hydration gels
• ⚖️ Ultra-light weight (29 g) – ideal for long runs and races
• 🦷 Fast-flow bite valve – comfortable and gentle on your teeth
• 📏 Graduated scale (60–300 g) – easily monitor your carb intake
• 🔄 Shrinks while drinking – prevents sloshing and stays compact
• 🧳 Compressible – easy to store after use
• 🌱 BPA and PVC free – no aftertaste, safe and sustainable

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📊 Specifications

• Capacity: 500 ml (16 oz)
• Weight: 29 g
• Closure: Regular Bite Valve with screw cap
• Material: BPA and PVC free TPU
• Dimensions: L 200 mm (245 mm with nozzle), W 90 mm, D 30 mm

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🎯 Perfect for

Trail runners and endurance athletes who want an ultralight soft flask that allows them to easily monitor their energy intake, without the bulk or unnecessary weight.

We ship every business day with DHL. They pick up around 2:00 PM. Delivery in the Netherlands is usually the next day.

In the Netherlands, shipping is free for orders over 50 euros. In Belgium, shipping is free for orders over 100 euros.

We have a 365-day returns policy. Please use our returns form: https://trail.nl/retour

Precision Fuel &Hydration – Smart Hydration and Nourishment for Ultra Performance

Precision Fuel &Hydration (formerly known as Precision Hydration) offers trail runners targeted solutions for electrolytes and energy, tailored to your personal needs. No one-size-fits-all approach, but smart products that match your sweat profile, effort level, and race plan.

Whether you lose a lot of salt or are looking for a constant source of energy during long distances: PF&H helps you to to prevent fatigue and cramps, so you can keep up the pace for longer.

✅ Electrolytes in different strengths (250–1500 mg Na)
✅ Energy gels, drinks and chews with stable absorption
✅ Makes personal hydration and fueling easy
✅ Ideal for training and ultras

Available at Trail.nl – your specialist in smart sports nutrition.

View the complete Precision Hydration collection here

Do you have questions about this product or are you unsure about several models? Feel free to contact us or visit our shop.

• The fastest way is the chat button at the bottom right.
• You can also email us at winkel@trail.nl.
• You can also call us at 020 308 6088.