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Soft Flasks 500ml for Trail Running and Hiking Adventures
Stay hydrated with the Ergotrail Soft flask water bottle—perfect for trail runners, hikers, and endurance athletes. Lightweight and collapsible, these soft hydration flasks are ideal for long hikes and ultra-marathons.
Universal Fit: Soft water bottle for running vests
The Ergotrail Soft Flasks 500ml fit seamlessly into any hydration pack or running vest designed for 17oz/500ml bottles. Lightweight and compact, they provide a secure fit, making them ideal as soft water bottle for running vests, trail running, hiking, or as a convenient addition to your backpack.
Wide Opening Soft Flask water bottle for Easy Filling
The Ergotrail Soft hydration flask features a wide 1.57-inch opening, allowing for easy refills, thorough cleaning, or adding race fuel. Designed for trail runners, hikers, and outdoor enthusiasts, these soft hydration flasks make hydration simple and stress-free during any adventure.
Fast-Flow Bitevalve in Soft water bottle for running vest
The Ergotrail Soft Flasks 500ml feature a Bitevalve top for fast hydration. Designed for trail runners and hikers, these soft flasks for running vests ensure easy drinking during intense activities. Stay focused and hydrated with this performance-ready design.
Leak-Free Soft Flasks for Reliable Hydration During Every Adventure
Built for endurance, the Ergotrail Soft Flask water bottle features a leak-free design to keep your gear dry and your hydration hassle-free. Durable and versatile, these soft hydration flasks are perfect for trail running, hiking, camping, or use as soft flasks for running vests.
James
Reviewed in the United States on March 4, 2025
Pretty good design. Yes, it's doubtful that there are no harmful chemicals involved, as the thing smells like plastic even after using the tablets provided, and allowing to soak several overnights. However, living in Florida, I fill with ice only, and drink the melted ice during my walks. Bite valve is air tight, which means its like a vacume as you drink the bottle naturally contracts, which in a nice feature to me. In general, I've found many of the claims on China products are dubious at best. Afterall, who tests the protect claims? Answer: nobody. I just hope the awful chemical toxins don't kill me in the short term.
Ryan
Reviewed in the United States on March 2, 2025
I really wanted to like these because of the wide mouth and general fitment in my running vest, but after a week of experimenting I've determined the mouth piece is defective.What I mean by that is when you take your mouth off the bottle after drinking, the mouth piece continues to flow for several seconds which is not great. I was covered in sticky electrolyte drink 3 miles into a 13 mile run. Will try to return them.
Rachel S.
Reviewed in the United States on February 28, 2025
We love this foldable water bottle/flask! It's compact when empty and folded down, and while I can't testify to how well the filtered straw works (haven't found any random water sources and vacation days to test this), we're loving it for our hikes!
Vashti
Reviewed in the United States on February 24, 2025
This filter bottle reminds me a lot of the Katadyn BeFree water bottle. It has a smaller size at about 15 ounces in capacity and the valve mouthpiece is a bite valve instead of a squeeze through, but the overall filter media/functionality is the same. You put the dirty water in the water bottle, and then you squeeze the bottle while opening the bite valve in the mouthpiece. This takes a bit of practice. You either bite down and squeeze the water (through the filter and) directly into your mouth, or you can press the bite valve open with your fingers so that you can squeeze the filtered water into a cook pot or somewhere else. This is the reason I took off one star. I like the design of this filter water bottle, and the filter appears to work well. However, I don't like that if you want to put filtered water someplace other than your mouth that you need to use your fingers. And how clean will they be in the wilderness if you are filtering dirty water. Anyway, it is not a huge deal, just something to consider. If you only are using this water bottle to drink directly, then it is no issue. But usually when I am filtering water, I also need it to cook with while backpacking in the wilderness, and clean hands can be hard to come by.This is a neat little filter that would be an asset to anyone's hiking and backpacking gear. It is lightweight and works well.
Compguy
Reviewed in the United States on February 13, 2025
This water bottle impresses me with its compact design, as it can fold down to a remarkably small size when empty, making it incredibly portable. This feature is especially advantageous for outdoor enthusiasts who need to save space in their gear. Unfortunately, I won’t be able to assess the efficiency of the built-in filter yet, as I have not received the other filters I ordered. Since this bottle will serve as a backup in my go-bag, testing it would require purchasing new filters, but it already offers peace of mind.I can easily slip this bottle into my pocket or backpack, making it convenient for daily use and emergencies alike. It's essential for adventures in the wilderness or hiking, where accessing safe drinking water can be a challenge. Being able to filter water on-the-go ensures that I can stay hydrated and safe.
Dustin Floyd
Reviewed in the United States on January 24, 2025
Ergotrail really markets this to trail runners, which I am not. BUT - I do a lot of multi-day backcountry hiking trips, and I was looking for a backup water filtration system we could add to our kit. This seems *perfect* for that job since it's so lightweight: it won't filter a lot of water easily, and the materials don't seem as durable as a Sawyer or a Lifestraw, but man is this thing lightweight. I hate carrying backup anythings when every ounce matters on a big hike, but water problems can really ruin your day. (We actually had to rescue an ill-prepared hiker in the Grand Canyon once on a 110F-degree day who hadn't brought enough water. A few hours later we watched a trail runner get evacuated on a helicopter. I've been a little paranoid about water ever since.) This feels like it'll be an idea solution. Minimal weight, adequate peace-of-mind.I've got a big trek coming up in a couple of weeks where I'll really get the chance to put this through its paces. Until then, initial impressions are good. It's a very simple design, which means it's lightweight and easy to disassemble, but that means you also need to be careful about reassembly to avoid leaks and contamination. I liked that the kit included baking soda tablets and instructions for removing the plastic smell/taste: I did that immediately, and an overnight soak seems to have done wonders. No more odor, no obvious taste.I'm optimistic that this will be perfect for what we need.
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