Hydro Flask 21oz. Stainless Steel Water Bottle For $20.97 From Amazon

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Hydro Flask 21oz. Stainless Steel Water Bottle For $20.97 From Amazon

This was selling for $32.95 and is now the lowest price ever from Amazon.

Dan’s Note:

I’m a bit obsessed with Hydro Flask. I love drinking ice cold water and use a Hydro Flask every day without fail.

Similar to the Polar Bear Cooler/Suitcase and Bose QC45 Noise-Cancelling Headphones, it’s also one one of my essential travel items.

I’ve tried other bottles, but nothing else is as leakproof or keeps liquids as cold or as hot as Hydroflask does.

The TSA allows you to bring ice through security, so you can fill it up with ice at home and fill it with water after security so that you’ll have ice cold water. If there’s an airport lounge I’ll fill it up there with ice water and it keeps drinks ice cold for days, even in the hottest of environments.

Hydro Flask will also keep drinks piping hot for a day.

I learned about it from a DDF member who took a job transfer to Hawaii after he raved on his blog about the Hydro Flask. I splurged for one and took it on United’s Island Hopper and have loved it ever since. DDF member Something Fishy bought one on my recommendation and brought it to Cuba and raved about having ice cold water in the sweltering Havana summer sun.

Best of all, Hydro Flask has an amazing lifetime warranty. When my straw cap got moldy after a few years they sent me a new one immediately after I filed a claim, no questions asked.

HT: Davidthebest.

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8 Comments On "Hydro Flask 21oz. Stainless Steel Water Bottle For $20.97 From Amazon"

All opinions expressed below are user generated and the opinions aren’t provided, reviewed or endorsed by any advertiser or DansDeals.


For how long does it keep water hot? Can I fill before Shabbos and expect hot water for Shabbos morning?


Cold lasts longer than heat (when I put ice water in mine, it will still be ice cold 24 hours later). It’ll stay hot for ~6 hours, after ~12 probably more warm than hot. You might be able to get away with it on a summer shabbos, but not in the winter.


Ok. Thank you!


No chance.


its full price


How does this compare to contigo? I love cold water and condiho keeps it cold for 24 hours when I put in ice cubes



Matt B

Can get for $21.42 on hydroflask site for certain colors. Plus a lot of different sizes and types on sale, though $30 needed for free shipping. I also saw 2 packs of the 22 oz tumblers at costco the other day for around $40-45 (can’t recall exact price) but seemed like a decent deal.