SoftFlask™ 500ml

made by HydraPak®, 42mm wide mouth, locking cap
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Made by the hydration experts HydraPak®, our SoftFlaskTM 500ml is designed to integrate seamlessly with vests and belts, as well as the drop-in side pockets on our Trail Shorts, Half Tights and Tights. Featuring a low-profile, tapered welded bottom and an easy fill 42mm wide mouth for nutrition mixing, this flask is topped off with a locking cap to prevent unwanted spillage and a handy measurement guide, just in case.

Features
  • 42mm wide mouth design with locking cap for leak-proof in/outs
  • Low-profile pinch-welded flange design for easy drop-in pocket fit
  • 500ml measurement guide 
  • BPA and PVC free
  • Top rack dishwasher safe (best to avoid high heat settings)
  • Backed by the BeyondTM Lifetime Guarantee through HydraPak®
Materials + Specs
  • Volume: 500ml (16.9oz)
  • Weight: 38g (1.34oz)
  • Materials: thermoplastic polyurethane sleeve, silicone bite valve, polyoxymethylene cap
  • Made in China
Select your size:
Gear added to cart:
SoftFlask™ 500ml
SoftFlask™ 500ml
Qty: 1
$28
Checkout
  • 5 stars: 35 (83%)
  • 4 stars: 2 (5%)
  • 3 stars: 2 (5%)
  • 2 stars: 1 (2%)
  • 1 star: 2 (5%)
J
Jordan
Wear it for: Running, Hiking, Climbing
Product Fit: Spot-on

SoftFlask™ 500ml

S
Stefanie
Wear it for: Running, Hiking, Camping
for my daughter for christmas - has not been used

for my daughter for christmas - has not been used but will get alot of use in the future

B
Brandon
Wear it for: Running
Product Fit: Spot-on
500ml

Love it. I like the quality and the wide mouth to fit ice in it. No leaks. Great water flow

A
Arely
Wear it for: Running
Product Fit: Spot-on

SoftFlask™ 500ml

t
trisha
Wear it for: Running
Product Fit: Spot-on
Love it

Love it. Came free with my awesome jacket but will now be a staple with me on every long run and at the Marine Corps marathon

R
Run
Wear it for: Running
Not my thing

My first experience using a flask vs bottle and I don’t like it. Really thought the softness would be easier to use/hold during long runs but it was anything but. The more I drank the harder it got to hold. Just going to stick with my trusty bottle from now on.

M
Mike
Wear it for: Hiking, Camping
Product Fit: Spot-on
Perfect for hikes!

I did a multi-day hut-to-hut backpacking trip and these soft flasks were perfect for quick access water either in my pack side pocket, or my janji trail tight pockets.
I had 2 of these- one for just water and the other for my electrolyte mixes. And when they were empty, they collapsed well till I could fill them up again. I felt well hydrated for the entire trip!

E
E
Wear it for: Running
Product Fit: Runs large
Cap is too large and digs into my leg

I appreciate that the flask has a wide mouth so I can easily fill it with fuel. However, when the flask is near empty, the cap digs into my leg. I usually run with the flask in the side pocket of my pace shorts

G
Gregory
Wear it for: Hiking
Product Fit: Spot-on

SoftFlask™ 500ml

T
Tyler
Wear it for: Running

SoftFlask™ 500ml

T
Ttado
Wear it for: Running
Product Fit: Spot-on
Great!!

Great!!

A
A.J.
Wear it for: Running
Product Fit: Spot-on
Works as you would expect!

Not much to a soft flask. Works as it should. Kind of a pain putting a soft flask back in the pocket but with a few more runs I think it will get easier.

J
Julie
Wear it for: Running
Product Fit: Spot-on
This flask is the perfect fit for the Janjii

This flask is the perfect fit for the Janjii running shorts ! Very comfortable for long races
Love it

J
Joel
Wear it for: Running
Product Fit: Spot-on
Great Bottle

Bought it as a backup and quickly moved into the starting rotation.

E
Egor
Wear it for: Running
Product Fit: Spot-on

Great!

M
Meghan
Wear it for: Running
so easy

everything the other positive reviews say is right. I like the shape at the top - easier to slip into my shorts pocket.

P
Pip
Wear it for: Running
Product Fit: Spot-on
Nice soft flask

Love the on/off switch for the nozzle. Saves wet story if flask gets pinched by tying your shoes.

J
John
Wear it for: Running
Ok flask

There are better fitting and locking style caps for the price on hydra flask.

K
Kelsey
Wear it for: Running, Hiking
LOVE

Love this flask, especially the closure on the mouthpiece.

J
James
Wear it for: Running, Hiking, Camping, Climbing, Mountain Biking
Product Fit: Spot-on
Great purchase

Great purchase. Bottle is light very durable and I can take it in any get or belt.

K
KellyD
Wear it for: Running
Great for use with trail tights but hard to clean valve

I love the size and ease of use while running, and I didn't know how much I would love that it locks so it won't leak. It fits in my trail tight pocket and makes it easy to bring water and snacks along when I don't need to bring my whole running vest. The flask itself has a good shape that dries out easily, but the valve is difficult to clean and I noticed mildew building up.

M
Meghan
Wear it for: Running
Love the mouthpiece

I love how you can close the mouthpiece, I can fill them up and toss them in my car without worrying about them leaking. They fit in my Salomon ADV 12 perfectly.

M
Madalyn

First time I ever used a soft flask. I liked it. This I e is easy to fill and doesn't leak

R
RUPA
Wear it for: Running
Product Fit: Spot-on

Ran Chicago Marathon couple of weeks ago and the soft flask came in handy…👍
Fit in pockets on running tights/shorts is perfect

V
Veronica
Wear it for: Running
Product Fit: Spot-on
Great!

Fits in my janji tights perfectly

a
amanda
Wear it for: Running, Hiking
Product Fit: Spot-on
Handy bottle!

Appreciate its design and utility

C
Chrissy
Wear it for: Running, Hiking
I prefer my Temu / Amazon bottles

I prefer my Temu / Amazon water bottles honestly. Especially at this price

M
Mark
Wear it for: Running
Product Fit: Spot-on
Confirmed half tight compatible

Ran my first ultra 40mi with these. Easy to take fluids, and stash in the half tights, especially when a surprise downhill rock garden greets you. When I ran a marathon, I had a lot trouble drinking on the run from a cup, but I was able to take in 4.5L over 9 hours.

M
Mary
Wear it for: Running, Hiking
Locking soft flasks: best idea ever

Amazing. Shocking it took this long for these to be a thing. With a big bladder it’s hard to know how much you’re drinking/how much you have left and you have commit to all your liquid being the same (water, lytes, etc). It’s easy to throw a few extra of these in the back of a pack and not worry about leaking. Game changer.