Name: Nathan 20oz Soft Flask w/Bite Top
Brand: Nathan
SKU: 4MKQY2P07POL
Availability: OutOfStock
Rating: 4.3 (16 reviews)

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Nathan 20oz Soft Flask w/Bite Top

Convenient 20oz soft flask that goes great in front vest pockets, or stashed on the back.

Universal Product Code (UPC check)

I have several hydration vests and rotate them on a routine basis. With 200-300 mile months, I sometimes need to replace a bottle, and these are a great fit for my Nathan VaporKrawl.

Race vest bottles

nathansports.com

Great soft bottle. Does not have that nasty, plasticy taste, cleans well, and doesn't retain electrolyte or flavored water tastes. 

Cool cap design, too, with multiple settings where it can be bit, a squirt bottle, or completely locked.

Solid design

ExpertVoice.com

As an Ultra-marathon runner I need to get as far as I can on a couple of water flasks on my vest. When I found these 20-ouncers I was excited but hesitant they may not fit my vest. They DO & my straw extensions fit on them also - Love them!

Upgrading to Larger Flask

These flasks are great! Very comfortable in a hydration vest.

Highly Recommend

Very lightweight, yet durable.  Like how it shrinks when being emptied to allow for more room.

Excellent hydration source!

Good flow from the bite top. Durable material and fits great in my vest!

Good flow

I bought these for my Hydration vest. They do not have a spine like the old ones but I had no issues using them. They work great for my runs

Good product

Not a good replacement for the original. I have a Vapor Krar 4L and i liked the way the flasks had a plastic bar in them which kept them upright even when empty. These are not those and sag and fall down inside the pouch as they get low on fluids. Also no long straw options so i had to purchase them separately addung to the cost.

Not what I needed

Packaging: "Integrated spine provides support for the soft flask and feels great to hold."

Reality: No spine at all.

This is a thin plastic bag with a nozzle on it.  They obviously replaced the product with an inferior, cheaper version.  WAY overpriced for what it is now.

Knock-off of the original

The package claims an integrated spine provides support - none whatsoever. These bottles are so flimsy and weak that they repeatedly collapsed in on themselves IN the pockets of my hydration vest. The original bottles that came with the vest have an actual hard plastic spine that keeps them upright and I will be looking for more of those.

Flimsy bottles don't hold up