Soft Flask PRO 350 ml, narrow mouth

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🧪 Soft Flask PRO 350 ml, narrow mouth – Technical Data Sheet

Functional Description:

Soft, compact and highly portable hydration device with a 350 ml capacity. Specifically designed for running, with an ergonomic shape that naturally fits the width of the hand. Its geometry, flexible materials, and optimized mouth make it ideal for endurance sports such as running, trail running, skyrunning, ultramarathons, and similar activities.

🧾 Technical Specifications

• Usable capacity: 350 ml
• Net weight (empty): <50 g
• Dimensions (approx., full): 260 mm length × 45 mm diameter

Ergonomic design:

• Body geometry designed to facilitate handheld grip while running, minimizing hand muscle fatigue.
• Lightly textured exterior surface to prevent slipping.

Technical mouthpiece:

• Type: bite valve with automatic return (self-sealing)
• Reduced diameter (narrow mouth): minimizes space and facilitates storage in front pockets, belts, or hand grip

Materials and safety:

• Body: Flexible BPA- and PVC-free TPU (thermoplastic polyurethane)
• Valve: Food-grade silicone
• Cap: High-strength polypropylene
• CE / FDA certified for food contact

Operating temperature:

• Range: -20 ºC to +50 ºC
• Not suitable for hot or carbonated liquids

Manufacturing: PRC (China)

🧼 Care and Maintenance

Cleaning before first use:

To remove manufacturing residues and neutralize plastic taste, a deep cleaning is recommended before first use.

Recommended technical procedure:

1. Rinse the interior with hot water.
2. Dissolve 1 effervescent denture cleaning tablet in 250–300 ml of hot water.
3. Fill the flask completely and let it sit for 30 min to 2 hours.
4. Empty and rinse several times with hot water until no odor or bubbles remain.
5. Air dry in an upright position with the cap open for 4–6 hours.
6. Optional: If the smell persists, pre-wash with baking soda (1 tablespoon in hot water, 15 minutes) before the tablet treatment.

Regular maintenance after each use:

• Wash with warm water and mild detergent (do not just rinse).
• Avoid prolonged direct sunlight exposure.
• Store in the freezer between uses to prevent microbial growth and remove organic residues.
• Do not sterilize in microwave or autoclave.

🏃 Recommended Use

• Direct handheld use during long runs or training
• Compatible with hydration belts, front vests, or compression pockets
• Ideal for prolonged efforts where quick access to fluids is required without interrupting stride or pace