






💦 Stay fueled, stay flexible—hydrate like a pro on the go!
The WILDREEDS 500ml Soft Flask is a BPA-free, food-grade TPU collapsible water bottle designed for active professionals. Featuring a wide 20mm cap and high-flow valve, it enables fast, leak-proof hydration without interrupting your run or ride. Lightweight and foldable, it fits seamlessly into hydration packs, running vests, or pockets, making it the ultimate companion for hiking, cycling, climbing, and endurance sports.







| ASIN | B0F32K3GSJ |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #2,098 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #136 in Water Bottles |
| Bottle Type | Collapsible Bottle |
| Brand | WILDREEDS |
| Capacity | 500 Milliliters |
| Color | 500ml Yellow to Green |
| Customer Reviews | 4.2 4.2 out of 5 stars (408) |
| Date First Available | March 31, 2025 |
| Item Weight | 1.76 ounces |
| Item model number | SFL-037 |
| Manufacturer | WILDREEDS |
| Material | Thermoplastic Polyurethane |
| Number of Items | 1 |
| Part Number | SFL-037 |
| Product Care Instructions | Dishwasher Safe |
| Product Dimensions | 2"W x 5"H |
| Recommended Uses For Product | Cycling, Fitness, Hiking, Running, Sports |
| Reusability | Reusable |
| Shape | Round |
| Size | 16.9 Ounces |
| Special Feature | Collapsable, Lightweight |
| Special Features | Collapsable, Lightweight |
| Unit Count | 1.0 Count |
C**4
Great for marathons
Purchased to use during my recent marathon, as there were some "cupless" water stations and I didn't want to carry my handheld for 26+ miles. It fits perfectly in the side pocket of my FlipBelt shorts. Only took a few seconds to refill with 2-3 cups of water/electrolytes, so you can avoid the congestion at every water station.
J**K
No odor, no leaks
Really great mottle. No odor at all, no leaking. Drinking action is easy. The top shoulders of the bottle are slightly stiffer allowing you to drink without the bottle flopping but the whole thing really does roll up tiny. The middle size is smaller than I was able to envision but it fits perfectly into a coat pocket. Not sure who would need the smallest size except somebody who perhaps needs a little bit of liquid to take medicine.
A**K
Plastic Taste, But Useful
I washed it out multiple times but it still tasted like plastic. I’m hoping that will change over time. It does seem reduced from what it was when I first got it. I would suggest filling it and then dumping the water out many times before you use it, since that seems to have helped with mine. It otherwise works well. It doesn’t leak, fits in my pocket when it’s empty, and I can easily pull it out and refill it at the nearest water fountain when I am at the amusement park. So it helps me stay hydrated, which can be a difficult thing to do, but is super important when standing in line in the heat.
K**.
Simple, Reliable, and Easy to Use
This is the only soft flask I’ve ever used, and it’s been excellent. It fit perfectly in my running belt during a backyard ultra and stayed comfortable the entire time. Drinking from it was easy with great flow, even while moving. It’s also simple to clean, which is a big plus after long runs. Overall, it’s a reliable, no-fuss soft flask that does exactly what it should.
H**C
Perfect for drinking underwater on a long scuba dive
Bought the 250ml size to put in my BC pocket while scuba diving. One particular shore dive in Dania Beach, FL has a long walk to the site so this is perfect to use. Since it is a bit valve, I stick it in my BC pocket and am able to drink from it if I get thirsty while scuba diving.
M**H
Smells but very, very compact
Unsure of how to rate as I returned without use. I returned it because it smelt just like a brand new pool inflatable or really most any pvc plastic item. It was very strong smell. Everything I've ever owned that was an inflatable that smelled like that also had a taste to it. That I would tolerate to inflate but I didn't think I would like drinking out of something that smelled and tasted like that. I also haven't know that taste or smell to fully go away, fade for sure but not really gone. Would it flavor the water too? I don't know. That said if I was desperate cheap and needed something really small like this for water I'd manage it. I could probably deal with it. I went with a collapsible silicone bottle instead. It was bulky and heavy compared to this. Too big for my mini purse unlike this. It had no taste issues or smells and seemed more durable and had a clip so I could hang it from my purse. I guess pick your poison 🤷♀️
L**E
Perfect size for a run pocket
I wanted something that was easy to carry but not overly cumbersome to have in a pocket when running. My boyfriend and I both use these for our training runs during hot summer days, and it's been perfect. The water doesn't have a funny taste, it's very durable, and I like how it compresses down when empty. I often times will refill at a water fountain for a more sustainable option to asking for a plastic cup.
M**L
Imparts bad taste.
This product is not good. The water bottle imparts a bad taste to the liquids. I tried water - tasted bad (and it was filtered water). I also filled one with pickle juice and the smell of pickles permeated the container; making the outside smell like pickles. I washed the outside of the container in case it was due to me spilling the juice while filling (which I know I didn’t do) and within an hour the pickle smell return. Something is wrong with this product. Other, similar, water bottles made of TPU did not have this same result. Guess I’ll go back to those.
A**Y
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