Soft Flask PRO 500 ml, narrow mouth

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🧪 Soft Flask PRO 500 ml, narrow mouth – Technical Data Sheet

Functional Description:

Flexible, high-capacity (500 ml) hydration system designed for endurance athletes who need greater liquid autonomy without sacrificing portability or ergonomics. Its optimized design fits hydration belts, backpacks or vests, and is especially useful in long-distance events such as trail running, marathons, ultrarunning or extended training sessions.

🧾 Technical Specifications

• Usable capacity: 500 ml
• Net weight (empty): <55 g
• Dimensions (approx., full): 280 mm length × 60 mm diameter

Ergonomic design:

• Cylindrical geometry optimized to fit front pockets, hydration belts and elastic backpack compartments.
• Flexible body compresses progressively while drinking, preventing splashing and easing reinsertion.
• Lightly textured surface for better grip during activity.

Technical mouthpiece:

• Type: bite valve with automatic return (self-sealing)
• Narrow diameter: enables easy extraction from tight pockets and ensures leakproof closure

Materials and safety:

• Body: BPA- and PVC-free flexible TPU
• 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)

🧼 Cleaning and Maintenance

Pre-use cleaning:

1. Rinse interior with hot water.
2. Dissolve 1 denture cleaning tablet in 250–300 ml of hot water.
3. Fill flask completely and let sit for 30 min to 2 hours.
4. Rinse several times until odor and bubbles are gone.
5. Air dry vertically with cap open for 4–6 hours.
6. Optional: pre-wash with baking soda if smell persists.

Regular care:

• Wash with warm water and mild detergent after each use.
• Do not store closed with liquid inside.
• Store in freezer between uses to prevent contamination and odors.
• Do not sterilize in microwave or autoclave.

🏃 Recommended Use

• Carry in belts, backpacks or hydration vests
• Ideal for trail running, marathons, skyrunning, ultratrail
• Useful as a backup soft flask in stage races or self-sufficient events