Eliminate liquid sloshing, save space in your pockets, and facilitate your hydration in the heat of the action thanks to our ultra-light flexible flasks.
The Meltonic "Soft Flask" Flexible Flask is the modern and ergonomic alternative to traditional bottles for all cyclists looking for lightness and practicality. Made from high-quality recycled and recyclable materials (BPA-free guaranteed), this flexible flask compresses as you drink. It adapts perfectly to the contours of your body and your technical clothing, avoiding any unnecessary bulk in the saddle.
One essential accessory, two capacities depending on your needs:
250 ml Size: A true featherweight of only 24g when empty. Ideal for carrying a concentrated dose of energy drink or a large volume of Meltonic energy gels during your crits or short training rides.
500 ml Size: Ultra-practical with a minimal weight of 33g when empty. Perfect for completing the autonomy of your main water bottles during long cyclotourisme rides, demanding gravel, MTB, or bikepacking trips.
At what moment of the ride and for what type of effort?
During effort on the bike: Whether you ride on the road, on MTB trails, or gravel tracks, the Soft Flask slips ideally into the rear pockets of your cycling jersey or into the compartments of a hydration vest. Thanks to its wide opening, it is extremely simple to pour your energy drink into it or to insert your refills. Its flexible valve allows you to hydrate quickly with one hand without disrupting your bike handling.
Cross-training & Outdoor: Particularly versatile, it is also the perfect companion for your running, trail running, triathlon, or nature hiking sessions.
Benefits and technical advantages
Compact & zero sloshing: Unlike a rigid bottle that is half empty where the liquid balances around, the Soft Flask empties its air with each sip. It takes up only the space of the volume of liquid it contains, eliminating unpleasant sloshing noises.
Eco-designed & healthy: Made from recycled materials and fully recyclable, it respects your body and the environment. Its formula guaranteed BPA-free preserves the natural flavor of your drinks without leaving any plastic aftertaste.
Optimal ergonomics: Its flexible texture perfectly fits bodily movements, avoiding painful pressure points in the back or pockets.
Usage and maintenance advice
Before the first use: Clean the flask thoroughly with clear water. For deep cleaning, you can use baking soda, white vinegar, or a squeeze of lemon juice. Shake energetically, scrub gently, and rinse abundantly.
After each ride: Make sure to completely empty the Soft Flask and rinse it with clear water, especially if you used an energy drink. To prevent the appearance of mold or bad odors, the best reflex is to store it in the freezer after drying.
Available capacities (by choice): - 250 ml - 500 ml
High accessibility: Wide opening for easy filling and washing
Empty weight: 24g (250 ml version) / 33g (500 ml version)
Did you know? In long-distance cycling like gravel or ultra-endurance, space and weight management are crucial. Rigid bottles fixed to the frame, although essential, have a fixed capacity and remain bulky even when empty. Carrying a spare soft flask in your jersey or frame bag offers you a flexible hydration reserve of 250ml or 500ml. Once the liquid is consumed, the flask rolls up on itself to occupy the volume of a single gel, freeing up space for your other race accessories.
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