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Hydro Flask
Medium Packable Bottle Sling

4.268656716417911 out of 5 stars
67 Reviews

Out of Stock

Don't worry though, we have a lot more Water Bottles in stock than that.

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Packable Bottle Sling

Whether town, trail, or outdoor concert, keep yourself hydrated and your hands free with this convenient sling. This convenient sling keeps a low profile when you’re not using it, and stays light when you want hands-free hydration on the go.


  • A lightweight sling that easily fits your widemouth bottles
  • Lightweight fabric easily packs down into its own pocket for travel
  • Stretch mesh pockets hold cards, keys, or lip balm
  • Dial in the perfect fit with fully-adjustable strap
  • Accommodates a 32oz or 40oz wide mouth bottle
  • Item #HYFZ01X
nylon ripstop
7 x 3.5in
Claimed Weight
Manufacturer Warranty
5 years

Overall Rating

4.5 based on 67 ratings

Review Summary

1 Stars - 6 reviews
2 Stars - 3 reviews
3 Stars - 4 reviews
4 Stars - 8 reviews
5 Stars - 46 reviews

Fits True To Size

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


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1 out of 5 stars

February 20, 2024

My 40 oz hydro flask

[This review was collected as part of a promotion.] My 40 oz hydro flask does not fit in this sling properly and does not stay on.

Marla M.

Originally reviewed on

4 out of 5 stars

February 13, 2024

Not for my bottle but works

[This review was collected as part of a promotion.] I bought this to use with my 32oz trail series water bottle. I know the sling is designed for the regular version but there is not an option that is compatible with the lightweight trail version. So I had to get this one. It works fine but does not fit snuggly. Normally I would not rate a item based on an application that it was not meant for, but since there isn't an option for the one that I do have,well, there you go. I would still recommend it as a good purchase.

Leigh O.

Originally reviewed on

4 out of 5 stars

January 27, 2024

Hydroflask medium sling

[This review was collected as part of a promotion.] Love the Cactus color! Wish there was a longer strap (because it can always be made smaller, but not longer). Also too bad there is not a hook of some kind for a caribeaner, keys etc. First time buyer, but will not be my last Hydroflask product.

Darcy D.

Originally reviewed on

5 out of 5 stars

December 30, 2023

Perfect for school

[This review was collected as part of a promotion.] Bought this sling for my wife because shes in school and has to lug so much around already, so now she has the perfect accessory to roam the school and hydrate!

Jennifer G.

Originally reviewed on

2 out of 5 stars

October 31, 2023

Works fine, wish it was a little bigger

[This review was collected as part of a promotion.] The 40oz bottle fits very tight and doesn’t fit when it has a flex boot on. I prefer to keep the flex boot on so I don’t think I’ll get much use out of this sling. A little more space would be a good idea for future products

Riley G.

Originally reviewed on

5 out of 5 stars

September 22, 2023

Wife loves it

[This review was collected as part of a promotion.] Boot needs to be removed, but If you put the boot in first you can slide it into the boot

Mark B.

Originally reviewed on

4 out of 5 stars

August 7, 2023

Convenient and easy to use

I purchased this sling for those hot summer days walking my dog around the block and for quick hikes that don't require a bladder or backpack. My biggest complaint is it won't fit with the boot on. I have ruined a few hydroflask from drops without the boot and would like to continue to save my bottle from rocky falls. I do love that it packs within itself.

Originally reviewed on

5 out of 5 stars

August 4, 2023

Really like the look &

Really like the look & the durable of the products

Nellwynn L.

Originally reviewed on

5 out of 5 stars

July 27, 2023

Sling bag good fit for 32 oz lightweight wide-mouth water bottle

Have had two Hydro Flask water bottles stolen because Inset them down. Not gonna happen again. Ordered this sling bag and wear it cross body. Good fit, added carabiner for extra safety, no more setting down my bottle and having it get stolen!

Christine M.

Originally reviewed on

1 out of 5 stars

July 11, 2023

I Wanted to Love This BUT

I bought this for a 40 0z wide mouth bottle, it doesn’t stay on and slips off CONSTANTLY! There is no way to secure the bottle other than gravity, don’t let it flip over or your bottle will come crashing out. Hopefully, the next design will fix this flaw - this is fine for a very SLOW WALK - Don’t have hopes of being super active. I’m greatly disappointed.


Originally reviewed on