Hydro Flask  Standard-Mouth Stainless-Steel Cap

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Don't get caught without some refreshment. Made to fit your Hydro Flask bottle (not included), this Standard-Mouth stainless-steel cap keeps your drinks secure for all-day sippin'.

Color: Stainless
Quantity

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Features

  • Fits all Hydro Flask Standard-Mouth bottles (not included)
  • Leakproof cap is made from 18/8 pro-grade stainless steel that's insulated for maximum temperature retention
  • Flexible strap is easy to transport and comfortable to carry
  • BPA-free
  • Top-rack dishwasher safe
  • Manufacturer offers a lifetime warranty on this product

Imported.

View all Hydro Flask Water Bottle Accessories

Technical Specs

Best Use

Multisport

Material(s)

Stainless steel

Dimensions

2.3 x 2.3 x 1.9 inches

Weight

1.9 ounces

Reviews
448 reviews with an average rating of 4.6 out of 5 stars

93% 157 of 168 reviewers recommended

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Wendyk65
Location:Cuyahoga Falls, OH
Rated 5.0 out of 5 stars
6 years ago

Environmentally conscious

[This review was collected as part of a promotion.] I really like this bottle. When it arrived , it came in this new packaging waffle like material and a recyclable bag that you can store it in or recycle it. The handle on the top of the flask is very strong and easy to carry it on the go with you, the metal is sleek stainless and cleans easily. It is a very nice size for me to use to take my nutritional water with me on the go to keep me hydrated. I am supposed to drink 4 to 4 of this size a day. This kept my water cold and my coffee hot. This would be great for all family members to use. It also has s wide mouth so it can be used for things like coffee.

Stephanie F.
Rated 5.0 out of 5 stars
1 year ago

Perfectly paired

[This review was collected as part of a promotion.] I will definitely keep buying more of their bottles and coffee bottles. Love how you can change the lids and it’s a straw or regular bottle you can sip from as long as you purchase wisely and keep in mind the sizes to match properly and have no problems with leaking.

Mainejoanne
Location:Lee, ME
Rated 5.0 out of 5 stars
4 years ago

Perfect replacement

[This review was collected as part of a promotion.] HydroFlask Standard Mouth Stainless Steel Cap is excellent for replacement or for a different look. I love how easy the replacement is to order and use. It makes me glad that if something happens to my original plastic cap that I can have a replacement handy. Also I’m glad that I can just use the stainless steel one when I’m going hiking or biking so I can have the sturdier option while I’m out and about. Fits nicely and tightly with no leaking or rattling. I am very happy with this product.

AmberRose0069
Location:Stephenson
Rated 5.0 out of 5 stars
4 years ago

Stainless steel holds temperature longer!

[This review was collected as part of a promotion.] I didn't think at first I would need or use this cap but I'm actually pleased with how well it works. I just recently got their trail series bottle for my daughter since she enjoys going on hiking trips with us. I went ahead and got a few extras to go with it. I have to say I'm glad I got the additional cap. It fits securely and because it's made of stainless steel it holds temperature for a longer period of time. Which is great on extended hiking trips as it also keeps your drink fresher. Plus if it gets dirty the design makes it easy to clean. The cap stays nice and snug so no spillage when carrying it by hand or in your backpack. The loop is of soft material and structurally secure. This cap is made to last and that's why I highly recommend using this one on your next outdoor adventures!!

Jessicaf4599
Location:Peebles Ohio
Rated 5.0 out of 5 stars
6 years ago

Amazing hydro flask standard mouth flex cap rocks

[This review was collected as part of a promotion.] I received this hydro flask standard mouth flex cap and its amazing not only does it keep my drinks cold for much longer it keeps it fresher longer also if i choose to have coffee of hot chocolate it keeps that warm a long time its very well insulated and is the best I've ever used I love how the lids tight and keeps everything sealed I truly wouldn't ever use any other cup or flask other than this it gets the job done all day.

Beatrice313
Location:Detroit Michigan
Rated 5.0 out of 5 stars
6 years ago

Great product

[This review was collected as part of a promotion.] I got this a few weeks ago and have fell in love with it it keeps my beverages warmer and cold it fits in my car cup holder and is great quality love the look of it has a great top that won’t allow spills a wide opening for filling wit your beverages

Lindsay S.
Rated 1.0 out of 5 stars
2 years ago

Broken already?!

[This review was collected as part of a promotion.] Got a replacement cap in July and it’s already broken. Same as the first one did.

RDCH
Location:Los Angeles, CA
Rated 5.0 out of 5 stars
6 years ago

Superior Construction to Keep Your Drinks Cold/Hot

[This review was collected as part of a promotion.] The Hydroflask needs no introduction and pretty much everyone I know owns one. But I want to stress how this stainless steel bottle is superior to any other bottle I've used when it comes to keeping the temperature of water for a longer period of time. It keeps liquids hot for longer than 12 hours and keeps liquids cold for up to 24 hours. Although the Hydroflask is prone to nicks and dents from rough handling, it won't ever shatter or break on you. The construction is extremely durable and well made. The flex cap that comes with this bottle is also pretty handy, no pun intended. The handle makes it convenient to carry around and the seal is pretty leak-proof. It's also pretty durable and the handle hasn't come off on me yet. I have never had any issues with leakage when it comes to this cap if it's tightened correctly on my Hydroflask. In addition, I love the customization Hydroflask has with their many colors and accessories. Changing out caps for different occasions and situations is convenient and being able to make your own Hydroflask stand out is pretty fun. Cleaning is a little tedious, especially when it comes to the standard mouth Hydroflask. I recommend getting a bottle brush cleaner that fits into the small opening in order to effectively clean the interior of the bottle. For those who want an easier time of cleaning, I would probably recommend the wide mouth bottle to them for easier cleaning access. Overall, Hydroflask is a bottle I use daily and I highly recommend it to anyone who enjoys drinking hot and/or cold water!

picoblanco
Location:Monterey, CA
Rated 5.0 out of 5 stars
4 years ago

Better than plastic

[This review was collected as part of a promotion.] I got the stainless steel cap because I keep hearing bad things about using plastics. I honestly don't know how true it all is, but to be safe I have stopped using plastic bottles or plastic caps. I love that Hydro Flask had a great option to remove plastics, and honestly, it looks even better than the plastic top did. My only tiny gripe with the stainless steel top is that it has a minor grinding sound when I screw it into my hydro flask (but it really isn't that bad). The cap is very secure and definitely doesn't let any water leak out.

HV88
Location:Quincy, MA
Rated 5.0 out of 5 stars
3 years ago

Great Matching Cap (Bye Bye Plastic)

[This review was collected as part of a promotion.] My standard bottle was almost the perfect bottle except for one minor nitpick.... I don't like plastic on my water bottles. So getting this stainless steel replacement cap was a no brainer. Adding this cap definitely elevates the look of the bottle. Everything blends together perfectly with the cap matching the stainless steel accents at the top of the bottle and even the exposed red gasket is a nice touch. Makes for a very premium feel and even functionally improve cold and heat retention.

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