Insulated Bite Top 18oz Soft Flask
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Shop Similar ProductsInsulated Soft Flask with Bite Top
When you're running on warm summer days, it's nice to have a cold, refreshing drink. With the Nathan Insulated Soft Flask with Bite Top, you'll have 18oz of cool refreshment as you run. Its insulated design keeps fluids cooler 38% longer than non-insulated soft flasks so you can expect a refreshing drink even when you're several miles deep. And conveniently, the flask is compatible with all Nathan hydration vests.
Details
- Insulated soft flask to keep liquids cool while you run
- 18oz provides you with plenty of on-trail refreshment
- Bite valve design prevents your liquids from escaping
- Insulated design keeps the contents cooler for longer
- Flask is compatible with all Nathan hydration vests
- Item #NAT004O
- Volume
- 18oz
- Lid
- bite
- Manufacturer Warranty
- limited
Reviews
Q&A
What do you think about this product?
Overall Rating
4.5 based on 15 ratings
Review Summary
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Selecting an option will reload the available reviews on the pageDecember 30, 2024
Great product
Great product. I have a running vest that I lost one of my water bottles during a race (tough mudder). I bought two of these to replace and they are great. I love the ease of using them while I am racing or training. I highly recommend these to anyone!
Originally reviewed on nathansports.com
October 1, 2024
Never got to use it before it broke
I put this in the dishwasher, top rack, as it says you can do. After washing it for my first use, I noticed the top looked different. The valve came out in the dishwasher and it’s gone gone. The bottle is useless now. Total waste of money.
Originally reviewed on nathansports.com
August 28, 2024
Great Flask! Exo-Spine for the win!
Great flask! Love the Exo-Spine! Best flask in the game!
Originally reviewed on nathansports.com
June 15, 2023
Works Great
Easy to drink from and fits perfectly in my vest. Put a few ice cubes in it and it stayed cool my whole run. Used it for my electrolytes so I don’t have to bother washing it all out of the bladder.
Originally reviewed on nathansports.com
April 8, 2023
Thankful for Insulation
[This review was collected as part of a promotion.] I love this collapsible flask because it’s insulated. Water gets hot quickly in the heat but this thoughtful insulation keeps my water cooler longer which helps a ton on long runs.
Originally reviewed on nathansports.com
March 7, 2023
Love that it’s insulated!
[This review was collected as part of a promotion.] Love this flask. I ordered extras to keep in my drop box and switch out for races.
Originally reviewed on nathansports.com
January 17, 2023
Perfect Fir
Excellent. It perfectly fit in my Nathan Hydration vest.
Originally reviewed on nathansports.com
September 26, 2022
Works great!
Love it! Easy to drink from and comfortable to hold.
Originally reviewed on nathansports.com
October 16, 2021
Great design and fit
Love this for my running vest. Not a fan of the straw systems because I can always taste the plastic no matter the manufacture says. I like the top on this and can just squeeze the flask while running to get a quick drink! It fits in both of my vests and holds just the right amount of water I need for 13.1 on the road or trails!
Originally reviewed on nathansports.com
August 3, 2021
Superbly designed!
Superbly designed! I use two of these bottles with the Nathan VaporSwift 4L Hydration Vest. They fit perfectly in the front pockets and I can sip from them without removing them from the vest while running. There is absolutely no sloshing as the bottle shrinks as you drink, no leaking, a proper level of flow when you do drink and when they are fully loaded on the front of the vest they do not bounce as the pocket comes up just over the top edge of bottle leaving the bottle nipple exposed. I label one for water and one for electrolytes. These help me run safely on the hottest Southern California trails. The lids can be a little tricky to screw on but I see that as a fair trade off for never seeing a leak. Well done Nathan!
Originally reviewed on nathansports.com
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