Softflask 500ml Water Bottle
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Softflask 500ml shrinks as you sip for stable, packable hydration on the move
What Our Gearhead® Experts Are Saying:
"This little flask has become my go-to for runs—it’s light, easy to refill, and doesn’t slosh once it starts to empty. The bite valve never leaks, and I love that it fits gels or electrolytes just as well as water. Super versatile and durable for how minimal it is."
We stay light and fast with the Rab Softflask 500ml Water Bottle, a flexible hydration solution that adapts as we move. Made from durable TPU with welded seams, it shrinks as we sip, reducing bounce and stowing flat in a vest, belt, or pack pocket once empty.
Designed for more than just water, the Softflask handles electrolytes, gels, or custom mixes with ease. The bite valve self-seals after every sip to prevent leaks, and the wide 42mm opening makes refills quick and hassle-free on the trail. At just 40 grams, it’s barely noticeable until we need it—and with freeze-friendly construction and heat tolerance up to 60°C, it’s versatile enough for every season. Free from BPA and PVC, it’s built for clean, reliable hydration wherever the adventure takes us.
Details
- 500ml soft flask for running, fast hiking, and backpack hydration
- Flexible TPU design shrinks as you drink to reduce slosh
- Durable welded seams withstand rugged mountain use
- Soft bite valve self-seals for leakproof performance
- Standard 42mm opening allows quick, easy refills
- Handles water, gels, electrolytes, or custom nutrition mixes
- Freezeable and safe up to 60°C / 140°F
- Lightweight at just 40g, packs flat when empty
- Item #RABZ0I5
- Material
- 100% BPA and PVC free
- Volume
- 500ml (17oz)
- Valve
- 42mm opening
- Activity
- running, training, hiking
Reviews
Q&A
What do you think about this product?
Overall Rating
4.5 based on 6 ratings
Review Summary
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Selecting an option will reload the available reviews on the pageApril 18, 2024
Good and lightweight but when
Good and lightweight but when full and put inside a Rab running belt it leaked from the nozzle slightly before a run.
Originally reviewed on Rab
March 1, 2024
Excellent fit in the shoulder
Excellent fit in the shoulder strap of my Rab rucksack. So easy to use and brilliant product
Originally reviewed on Rab
February 21, 2024
Fits perfect with my Aeon
Fits perfect with my Aeon Ultra 20. Great piece of kit and very effective whilst walking and prevents having to stop to get a drink
Originally reviewed on Rab
September 26, 2023
It's not going to let you down
Really good, soft fast. Big opening at the top allowing for easy filling.
Originally reviewed on Rab
August 15, 2023
Used every day since I
Used every day since I received and very happy. Packs well, easy to use, great bit of kit.
Originally reviewed on Rab
June 24, 2022
Great packable water carrier. Easy
Great packable water carrier. Easy to fit and pop into a backpack. Once emptied it packs away very easily. Easy to drink from. No spills. Gives more flexibility if the backpack doesnt have a side bottle holder as this takes up less room with it being 'soft' and not a fixed material, like a bottle is.
Originally reviewed on Rab
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