Hydro Flask Wide Mouth 18 oz. Bottle

Hydro Flask Wide Mouth 18 oz. Bottle is rated 4.5 out of 5 by 137.
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Hydro Flask Wide Mouth 18 oz. Bottle
Hydro Flask Wide Mouth 18 oz. Bottle
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Product Information:

Built for the trails or your daily commute, the Hydro Flask® Wide Mouth Bottle is perfect for staying hydrated and refreshed on the go. With an 18-ounce capacity, this bottle holds plenty of coffee, water or other favorite beverages to get you through the day ahead! This Hydro Flask® bottle keeps your drink at an optimal temperature for the long haul.


  • Hydration bottle for the gym, trails and everyday use
  • Capacity: 18 oz.
  • Large, wide mouth design opening
  • Durable, powder-coated design
  • Constructed with 18/8 pro stainless steel
  • BPA free and phalate-free
  • Includes lid for easy transport
  • Hand wash


  • Double wall vacuum insulation
  • Keeps hot beverages hot up to 6 hours and cold drinks cold and refreshing for 24 hours
  • TempShield™ protected sweat-free finish
  • Also compatible with Hydro Flask® Wide Flat Cap, Hydro Flip Lid and Wide Straw Lid

Additional Details

  • Manufacturer’s lifetime warranty
  • Model: W18TS
  • Brand: Hydro Flask
  • Country of Origin: Imported
  • Style: W18TS


Rated 5 out of 5 by from The Best Waterbottle Out There! I bought my 18oz wide mouth nearly a year ago and it's been great. I'm in the Air Force so when I deployed to Afghanistan, I took it with me. It can get up to 125 degrees Fahrenheit there and this bottle kept my water cold all day. I had to keep it close by at all times because the other troops were always eyeing it! I use the straw lid for it which is great as well but if it isn't pushed all the way down, it can leak which makes sense that it would happen. Easy fix is just to ensure it's pushed down. I'm going to be looking at purchasing a larger size one soon and I know it'll hold up just like this one has!
Date published: 2016-06-19
Rated 5 out of 5 by from Great bottle for daily use. I bought the black 18oz with the Flex Cap, and I also bought a Hyrdo Flip Lid as well. I use the Hydro Flip Lid daily while drinking at my desk or in the car. The bottle fits easily in my cup holders, and the flip lid is easy to open and drink from in the car or on the go. I use the flex cap to seal the bottle up when I'm tossing it in my backpack or gym bag. And even thought the flip lid is billed as "not leak proof", it still does an awesome job at not leaking or dripping everywhere. I would totally buy this again and recommend buying both the Flex Cap and Hydro Flip Lid.
Date published: 2016-09-06
Rated 5 out of 5 by from Cold water is the best accessory Hydroflask has changed my hydration game. I've had my Hydroflask for about a year and have purchased several more for family and friends as gifts. I carry mine with me everywhere, through daily office meetings, gym workouts, frequent travel, or even just on my nightstand. It's very much engrained with my day to day life tasks. The 18 oz is the perfect size; it fits easily in a cup holder, on the side pouch of my backpack, and doesn't get too heavy once it is filled up with deliciously cold water. I just recently lost my Hydroflask and am back on the site purchasing a new one.
Date published: 2017-02-11
Rated 5 out of 5 by from Great size for a commuter. I purchased this because I wanted an everyday bottle I could carry with my to and from work. The size fits my needs because it is small enough to comfortably pack in a backpack or tote bag, but still carries a good amount of water so I can quench my thirst throughout the morning. I do need to refill it about halfway through the day, but then that will get me through the rest of the workday. It truly does keep ice water cold for a whole day. I definitely prefer the wide mouth opening so I can easily put in lots of ice cubes, and I also find it more convenient to clean. The cap has been leak-proof thus far, and the small handle on the cap makes the bottle comfortable to carry. I purchased the silicone boot accessory, which makes setting it down on counters and tables feel better. And lastly, the Lilac color I got brings me joy. :)
Date published: 2019-04-05
Rated 5 out of 5 by from I LOVE THIS FLASK! I've tried many water bottles. I have a graveyard of failures. Not this time. The Hydro Flask is awesome! Got a wide mouth 18oz and the straw flip lid, fill with ice in am, add water and make it through the day. I just add cold water as I drink what I have, and the ice makes it all day. Awesome product. I am buying a spare or two now. The the straw lid is secure. No leaks all over my stuff yet, and no condensation problem.
Date published: 2016-05-14
Rated 5 out of 5 by from keep drink cold for more than 24 hours Everyone in our family has one of these bottles, 18oz size. We absolutely love how cold the drink or hot the drink stays in this bottle. I drink coffee out of mine, and water. Its great cause it doesn't retain the flavor of my past drink. I bought the flip top lid, cause I hate having my mouth touch the metal part of the inside. So I just bought a different lid. My only complaint about this, is you can not put it in the dishwasher. I hate washing things by hand. Otherwise, this is a fantastic bottle and has been worth every cent that I have paid for them. I also love all the different color choices you can get.
Date published: 2017-08-17
Rated 5 out of 5 by from Keeps its Cool! My experience proves it beats other, cheaper "insulated plastic" versions hands down. Even has ICE remaining after hours of off-road mountain biking in the Florida summer heat - I can't think of a better test. Keeps my water ice cold and is worth every cent if you value cold water on hike or bike. Get the size that works best for you and you won't regret it. I got the 18 oz as it fits perfect as the secondary stash in my medium frame mountain bike.
Date published: 2017-08-16
Rated 5 out of 5 by from I am obsessed! I bought the red one a few months ago, it has been amazing! keeps my water cold for hours and my coffee/tea hot for hours. I have since this purchase bought the bigger bottle and the top for drinking coffee on the go. I am growing my hydroflask collection and I am obsessed with everything I’ve bought! SO WORTH IT!
Date published: 2017-10-03
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