Introduction
Thank you for choosing the Zefal Sense Soft 800ml Water Bottle. This bottle is engineered to provide a simple, effective, and lightweight hydration solution for cycling and other activities. Made from high-quality polypropylene, it ensures a neutral taste and smell for your beverages. Its ergonomic design and soft silicone valve enhance usability and drinking comfort.
Please read this manual carefully to ensure proper use and maintenance of your water bottle.
Product Features
- Capacity: 800 ml (approximately 27.1 ounces) for extended hydration.
- Material: Constructed from BPA-free polypropylene, ensuring no Bisphenol-A, phthalates, or other toxins. The material is odorless, preserving the pure taste of water.
- Soft Silicone Valve: Provides a pleasant sensation during drinking and ensures a perfect seal when closed, preventing leaks.
- Ergonomic Design: Easy to grip and use, even during active conditions.
- Easy Cleaning: Features a wide opening and a removable valve for thorough cleaning.
- Conical Design: Slightly conical shape facilitates easy insertion and removal from bottle cages.
- Lightweight: Weighs only 83 grams, minimizing added weight to your gear.

Image: Zefal Sense Soft water bottles in various colors, showcasing the design.
Setup
- Unpack: Remove the water bottle from its packaging.
- Initial Cleaning: Before first use, thoroughly wash the bottle and its components (cap, valve) with warm soapy water. Rinse thoroughly to remove any manufacturing residues.
- Assembly: Ensure the soft silicone valve is securely inserted into the cap. Screw the cap onto the bottle tightly to prevent leaks.

Image: Zefal Sense Soft water bottle securely placed in a bicycle bottle cage.
Operating Instructions
- Filling: Unscrew the cap and fill the bottle with your desired beverage. Do not overfill; leave a small air gap at the top.
- Securing the Cap: Screw the cap back on firmly until it is hand-tight.
- Drinking: To drink, pull the soft silicone valve upwards with your teeth or fingers. Squeeze the bottle gently to dispense liquid.
- Closing: After drinking, push the soft silicone valve downwards to seal the bottle and prevent leaks.
- Placement: Place the bottle in a compatible bicycle bottle cage. The conical design aids in easy insertion and removal.

Image: A person demonstrating how to drink from the Zefal Sense Soft water bottle during cycling.
Maintenance and Cleaning
Regular cleaning is essential to maintain hygiene and prolong the life of your Zefal Sense Soft water bottle.
- Hand Wash Only: The bottle is designed for hand washing. Do not use a dishwasher, as high temperatures can damage the material and seals.
- Disassembly: For thorough cleaning, unscrew the cap and remove the soft silicone valve.
- Cleaning Solution: Wash all components with warm water and a mild dish soap. Use a bottle brush for the interior of the bottle and a small brush or cotton swab for the valve and cap crevices.
- Rinsing: Rinse all parts thoroughly with clean water to remove any soap residue.
- Drying: Allow all components to air dry completely before reassembling or storing. Store with the cap off to prevent odors.

Image: Close-up of the bottle's cap and valve, illustrating the removable components for cleaning.
Troubleshooting
- Leakage: If the bottle leaks, ensure the cap is screwed on tightly and the silicone valve is fully pushed down into the closed position. Check the silicone valve for any damage or debris that might prevent a proper seal.
- Unpleasant Taste/Odor: If you notice an unusual taste or odor, perform a thorough cleaning as described in the Maintenance section. Ensure all parts are completely dry before reassembly. For persistent odors, a solution of baking soda and water can be used for soaking, followed by thorough rinsing.
- Difficulty Squeezing: Ensure the valve is fully open. If the bottle is too rigid, it might be due to extreme cold temperatures.
Specifications
| Feature | Detail |
|---|---|
| Brand | ZEFAL |
| Model Name | Sense Soft 80 |
| Model Number | 157L |
| Capacity | 800 Milliliters (27.1 Ounces) |
| Material | Polypropylene (BPA-Free) |
| Product Dimensions | 11"W x 11"H (approximate, based on item dimensions) |
| Weight | 83 grams |
| Product Care Instructions | Hand Wash Only |
| Recommended Use | Cycling |
Warranty and Support
Zefal products are manufactured to high standards. For any questions, concerns, or warranty information, please refer to the official Zefal website or contact their customer support directly. Please retain your proof of purchase for any warranty claims.