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  • Hydro Flask - 18oz Wide Mouth Water Bottle - Black
  • Hydro Flask - 18oz Wide Mouth Water Bottle - Graphite
  • Hydro Flask - 18oz Wide Mouth Water Bottle - White

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  • Hydro Flask - 18oz Wide Mouth Water Bottle - Black
  • Hydro Flask - 18oz Wide Mouth Water Bottle - Graphite
  • Hydro Flask - 18oz Wide Mouth Water Bottle - White

Hydro Flask 18oz Wide Mouth Water Bottle


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    16 Reviews


    Hydro Flask's insulated, stainless steel 18oz Wide Mouth Water Bottle is ideal for anything from warm hikes to cold ski tours, and especially hot yoga classes. TempShield technology keeps water ice-cold for up to twenty four hours, and it keeps hot drinks toasty for up to six hours. Hydro Flask updated this year's model with a flexible loop on the wide mouth cap for long-lasting convenience.

    • Pro grade stainless steel
    • TempShield double insulation
    • Flex cap
    • BPA-free
    • Item #HYF0015

    Tech Specs

    18/8 stainless steel
    18 fl oz
    Recommended Use
    casual, hiking
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Great Product!

    • Familiarity: I've used it several times

    I have always heard a great deal of hype about the Hydoflasks. The rage is real! I used this to put hot chocolate in while boarding, ended up leaving in the car while I was on the slopes. When I came back to the car about 7 hours later my hot chocolate was almost as hot as when I first put it in the bottle. Definetly a fan. Ended up buying a bunch more for some christmas gifts to my friends.

    Absolutely No Cons

    • Familiarity: I've put it through the wringer

    The 18oz hydroflask has to be one of the best purchases I've made. It's not too big or too small to carry around everyday. I bought the red and stainless steel ones for my parents and they haven't stopped using it since. The liquid stays steaming hot for about 9 hours, even when the water bottle is kept in the car or outside in the 5 degree weather. They also love it because they can alternate between the coffee mug lid and normal lid for when they do different activities. I can honestly say there are no cons when it comes to the hydroflask. I highly recommend these water bottle. When in doubt. Go with the hydroflask.

    Next Level Water Bottle

    • Familiarity: I've put it through the wringer

    I too have a handful of Hydroflask bottles, and love them all! Super durable, very good at keeping items hot/cold, and very secure lids- so you don't have to worry about spilling your goods everywhere. The lid on this is alright- not my favorite, but easy to clip into things. And it's definitely a plus that they make interchangeable lids too!

    Best Water Bottles Hands Down!

    • Familiarity: I've put it through the wringer

    I own multiple Hydro Flasks and they are by far the best water bottles! They are super durable and keep beverages cold or hot for a very long time! This size is perfect for coffee or a more portable water bottle! I prefer the 20oz version over the 18oz for water so I don't have to fill it up as often.

    Love this, as I do all of my hydroflasks

      I bought this particular hydroflask for my 12 year old for school. She loved mine so much she wanted her own for school. The new handle is nice, love the hydro flask products!!

      Great for cold and hot beverages!

      • Familiarity: I've put it through the wringer

      Clean, no frills design and rugged powder coat exterior make for a durable, reliable drinking vessel. Can't beat the vacuum insulation for keeping hot drinks hot and cold drinks cold! The new handle top seems very well made.

      I would recommend the flip lid for hot beverages such as coffee or tea. The inner walls of the bottle are easy to clean and don't hold scents or stain the way Tritan or other plastics tend to.

      The BEST Water Bottle!

      • Familiarity: I've put it through the wringer

      This water bottle (or any Hydro Flask, for that matter), is the bee's knees. I have yet to find another water bottle that compares to how well this one performs. Cold water, hot coffee, this one does it all!

      The quality construction is what will first grab your attention. The powder coated color is amazing, as the bright ones pop, and the dark ones look sleek. The plastic tether between the lid and the flask itself is a must have, and after having used mine for over two months, and it shows absolutely no signs of wear. The rubber placed around the lid is a nice touch, as it makes for better grip when opening your flask to enjoy the precious liquid contents within.

      Want cold water? Throw in some ice, add your water, and there you have it! Don't worry about leaving it in the car while you're out and about, you will come back with plenty of ice to spare!
      Prefer coffee as your drink of choice (I actually have a separate Hyrdo Flask specifically for coffee and hot drinks, along with the Hydro Flip Lid). I'd advise leaving the lid off to let it cool for a few minutes, as I made the mistake of attempting to drink from it after an hour and about burned my tongue!

      Bottom line, you won't be disappointed with ANY Hydro Flask product! Perfect for a gift, or just for yourself. I plan to continue to add to my collection, as one can never have enough water, or water bottles for that matter.

      The BEST Water Bottle!