Bite-to-drink mouthpiece
A sip within reach.
Bite the mouthpiece to drink without unscrewing the main cap. The soft body sits comfortably in your hand for a quick drink between the miles.
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500ml Collapsible Soft Flask
Regular price
Sale price
$14.90
Regular price
$19.90
500 ml · 45 g · 42 mm wide opening
Lightweight hydration for trail runs and hikes, with a bite-to-drink mouthpiece and a flexible body that folds down when empty.
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Specifications
Specifications
Model: RS-DF-SF26
Capacity: 500 ml / 16.9 US fl oz per flask
Empty weight: Approximately 45 g per flask
Dimensions: 75 × 265 mm
Neck: 42 mm
Materials: TPU, ABS, PE and silicone
Colors: Olive Black and Mist White
What’s in the box?
What’s in the box?
Single: One complete 500 ml soft flask with cap and mouthpiece.
Duo: Two complete 500 ml soft flasks with caps and mouthpieces, in your selected color combination.
DualFlow filter and other accessories shown are sold separately.
Use & care
Use & care
Rinse before first use and after each outing. Clean with a mild neutral cleaner or suitable flask-cleaning tablet when needed, rinse thoroughly and air-dry completely.
Do not use boiling water; keep liquids at or below 60°C / 140°F. Avoid bleach, harsh chemicals and sharp objects. Store dry, loosely arranged and away from heat and direct sunlight.
Payment & Security
Payment methods
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RidgeSong · 500 ml Soft Flask
Hydration,
without the bulk.
Keep your water close and your kit light. A flexible, 45 g soft flask for trail runs, hikes and the miles in between. Fill it, sip from it, then fold it down when it is empty.
500 mlCapacity per flask
45 gEmpty weight
42 mmWide opening
01 / Pack it down
Less bottle.
More room.
The flexible TPU body folds into a compact shape when empty. Tuck it into your kit between refills, or keep a spare flask ready for the next stretch of trail.
Fold for your outing. For longer storage, let it dry completely and leave it loosely arranged.
02 / Drink. Refill. Go.
Simple details.
Made for moving.
Quick sips on the trail. An easy opening at the next refill. Built around the way you use your water.
42 mm wide opening
Refill your way.
Fill with drinking water or add your electrolyte drink mix through the wide opening. Rinse thoroughly after each outing, especially after sports drinks.
03 / Keep it close
Your next drink.
Right where you need it.
The slim 75 × 265 mm profile fits suitable running-vest pockets, keeping your water close during a run or hike. At just 45 g empty, it adds little weight to your setup.
Vest shown for illustration and sold separately. Check your pocket dimensions for the right fit.
Your colors. Your carry.
One flask or a pair.
Choose a single flask, double up in one color, or mix Olive Black and Mist White. Every flask has the same 500 ml capacity and lightweight, foldable design.
Olive BlackMist White
Single flask
One complete 500 ml soft flask with cap and mouthpiece, in your selected color.
Duo pack
Two complete 500 ml soft flasks, each with cap and mouthpiece. Choose two Olive Black, two Mist White, or one of each.
DualFlow filter and other accessories shown in lifestyle photography are sold separately.
Before your next outing
The useful details.
Specifications, care and the answers to help you get ready.
Full specifications
- Model
- RS-DF-SF26
- Capacity
- 500 ml / 16.9 US fl oz per flask
- Net weight
- Approximately 45 g per empty flask
- Dimensions
- 75 × 265 mm
- Opening
- 42 mm neck
- Materials
- TPU, ABS, PE and silicone
- Colors
- Olive Black and Mist White
Dimensions and weight are approximate and may vary slightly.
How should I clean and store it?
- Rinse before first use and after every outing. Empty any remaining drink promptly.
- Use a mild neutral cleaner or a suitable flask-cleaning tablet when needed, then rinse thoroughly.
- Air-dry completely before storage. Store loosely arranged, away from heat and direct sunlight.
- Avoid bleach, harsh chemicals, stiff brushes and sharp objects. Do not keep it tightly folded or compressed for long periods.
Can I use hot water or sports drinks?
Use drinking water or noncorrosive sports drinks. Do not use boiling water; keep liquids at or below 60°C / 140°F. Rinse thoroughly after sports drinks and avoid leaving filled flasks in heat or direct sunlight for extended periods.
Does the flask filter water?
The flask itself does not filter or purify water. It is compatible with the RidgeSong DualFlow water filter for a separate filtration setup. The DualFlow filter is sold separately.