Hydrapak 2021 Stow Bottle 500ml

Weighs 38g
Code: SS21402
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The Stow is a handy, lightweight soft flask with a spill-proof drinking valve. Great for backpacking, heading to the gym or simple everyday use.

Hydrapak says:

Fill. Drink. Pack. Repeat. With durable construction and minimal design for easy packing, the flexible Stow™ 500ml helps make all your adventures the best they can be. Add the flip top cap with spill-proof valve for easy drinking, bail handle for comfortable carrying and attachment, and a weight 80% lighter than most hard bottles, and you’ve got a perfectly pocketable bottle.

Hydrapak's 2021 Stow Bottle 500ml internal baffle really works and keeps the shape of a flask when full. The flask shape is great for packing in your pack, but might be harder to stow on the outside of your pack or in a bottle pocket. The soft, yet durable materials used in the Hydrapak bottles are great for keeping the weight down but most importantly the packsize is tiny once the bottles are empty. The updated cap replaces the twist lock style and is easy to use with a flip top to protect against dirt and less messing around on the go.

A useful option is the ability to use it with water filters (with a 28mm thread) when you're heading to more remote areas. This saves space by having to take more bottles and makes the Stow that bit more versatile. This 500ml version is great for general use and as a handy option that fits in most pockets when you're on the trail.

- Reviewed by Ultralight Outdoor Gear

Help and advice:
  • Made for drinking during activity, the flip top cap keeps away outside elements and the spill-proof nozzle offers convenient drinking
  • Attaches to most 28mm threaded water filters, use as your durable backcountry squeeze bag 
  • Minimal design and durable construction allows you to pack it where most hard bottles won’t fit 
  • Flat shape won’t roll around during activity and fits flush in bike jersey’s or waist packs 
  • Flexible bail handle for comfortable carrying and easy attachment 
  • Extremely packable, flatten and roll when empty and stow in to bail handle 
  • 80% lighter than most hard bottles 
  • External capacity gauge allows you to track your hydration intake or measure out the contents 
  • Made of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticity 
  • Can be frozen or filled with hot water (max temp 60° C / 140° F) 
  • Safe and reliable, 100% BPA & PVC free
  • Weight: 38g
  • Capacity: 500ml / 17 fl oz
  • Dimensions: 175 x 102mm / 6.8 x 4.0in
  • Material: TPU, PP, Silicone
Showing our 2 Hydrapak 2021 Stow Bottle 500ml reviews with an average rating of Good. Would you like to write a review?
Review Summary - 3 out of 5 based on 2 ratings.
July 9, 2021 | BobL
Just the job

(Main use for dog walking) Having used several 'hard' water bottles with all the drawbacks (weight when full, space taken up when empty) I thought I'd give the Stow bottle a go. Fits nicely into the waist pack I use and as contents are used up it can be squashed down - no more sounds of sloshing water when walking either! There was a plastic taste to the water initially but washing out with lemon juice and baking soda soon removed that. No issues with the cap and contrary to some reviews I have read, squeezing the bag will allow water to come out (useful for letting the dogs drink if I forget their water bowl). I've used it every day since getting it and am thinking about 'splashing' out on another 500ml, or even the 1L size, for longer walks.

Ultralight Outdoor Gear Limited
June 14, 2021 | KeithR
First top split, next tastes of platic

I have had two of these. The first was an older design which was good until the top split and started to leak after a year or so. The second has a re-designed top, which is fine but has a horrible plastic taste in spite of me rinsing and washing it several times. I thought I could put the new top on the old bag but the top thread is different so it doesn't fit.

Ultralight Outdoor Gear Limited