650mL Locking Cap Flask

650mL Locking Cap Flask

Regular price $29
Regular price Sale price $29
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Built to hit the volume sweet spot for many runs at 650mL in volume. The bottle features a locking cap so the nozzle does not leak due to pressure from the belt. Made by HydraPak®.

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Lifetime warranty
Duty free to EU and Canada
Free returns in US

Built to hit the volume sweet spot for many runs at 650mL in volume. The bottle features a locking cap so the nozzle does not leak due to pressure from the belt. Made by HydraPak®.

  • Locking cap keeps nozzle from leaking
  • 650 mL
  • Filter Top Compatible
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  • 5 stars: 48 (98%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 1 (2%)
  • 1 star: 0 (0%)
D
Dylan R.
Great!

Thinking about carrying these guys around as my daily water bottle I love them so much. Never leaks, fits great in the running belt, perfect volume for moderate length trail runs.

C
Clayton D.
It’s my new go to bottle

I’ve taken it this bottle on 50 mile runs and 5 mile runs and it fit the bill for both.

A
Anonymous
Love’em

Great extra flasks that you can use with the vest or individually depending on distance. Love them

T
TA
Love’em

Great extra flasks that you can use with the vest or individually depending on distance. Love them

M
Mac J.
Perfect

It really is perfectly sized and exceptionally secure.

Z
Zachary A.
Goat

Best bottle

T
T.K.

650mL Locking Cap Flask

D
David V.

650mL Locking Cap Flask

A
Andrew A.
Excellent size for pockets on shorts. Very fast easy access.

Works really well with the shorts.

R
ROB
A little extra

Been loving the 650ml locking flask. I need a little more fluid on my long runs so these are coming in extra handy. I usually carry 2 stacked in the back of a running vest or 1 in the LF 2L running belt. The locking feature is key to avoid leaks!

C
Claudio R.J.
BEST FLASK

I love the size and locking system. very helpful and never a worry about leaking

R
Richard T.
Raide customer service is awesome

Raide replaced a defective soft flask that came with my belt about 2 weeks ago. Their customer service is awesome and went above and beyond to help me out! Awesome to see companies like this still exist!

H
Hocquart L.

650mL Locking Cap Flask

C
Csaba O.

650mL Locking Cap Flask

S
Scott F.
Great size flask and locking cap is genius

I can throw two or three of these in my vest and have very specific hydration that won’t spill on my other stuff!

E
ERIK M.
The best lightweight flask

This is the best lightweight flask to use on any of my adventures out in the backcountry or any other activity I might need it. The locking cap is essential as the other versions do not have it and that makes this product far superior. Raide does it again like they do with every product solving a problem and making my backcountry ski adventures even better.

M
Matthew B.
21 oz flask with twist top locks

Best idea and a long time coming.

J
James M.
Love them

Great fit and functionality. So cozy and easy to move in.

J
JT
Locking cap is a game changer

I love the idea and function of this cap, super nice it works on many otther common soft flasks as well.

B
Brett

650mL Locking Cap Flask

A
Anthony C.
650 bottles

Love the bottles, great locking mechanism on the cap and the extra capacity is a life saver. They fit in both a raide belt, and the normal bottle pockets on a Salomon vest

G
Gaute
Simply perfect

Been looking for a nice locking cap for hydrabotles and this is it!

V
Vidal M.

650mL Locking Cap Flask

G
Gregory P.
Good product

Exactly as advertised. I own two and will often shove the 650ml bottles into the front flask sleeves on my Salomon running vest for a little more extra water storage on long/remote runs. Also good for ultras with big gaps in air stations

K
Kelly D.

a treat!

L
Lucas K.
Best running belt in existence

Unmentioned bonus feature: the exposed parts of the compression system are a perfect spot to carry my anti-rabid dog batton.

K
Kendall W.
Just happy to see options beyond 500ml.

The flask and cap are the usual HydraPak quality with the usual HydraPak warranty. All good things on both counts. As such, I fully expect to get several years of not-so-gentle use out of them.

More importantly, I'm just glad to see that Raide and a handful of other companies are bucking a longstanding trend by standardizing on flasks larger than 500ml. Indeed these 650ml flasks work just as well in my vests as they do in the LF 2L belt and the extra capacity is greatly appreciated.

J
Jah
Stay Locked In

Best cap for any belt. Brilliant idea, whoever thought of it. Bought two (2).

A
Anonymous
Amazing!

Perfect bottle. Really enjoy the locking cap!

T
Thomas B.
Locking Cap is Ace

Love the locking cap - critical addition!

Y
YONGSUK J.

650mL Locking Cap Flask

K
KRIS S.

Love the locking cap! I can stash it in my sweet Raide running belt with confidence it will not leak.

N
Nathan
Another one

The thing works, this doubled what my belt came with and I’m going farther.