Hydro Flask
12 Oz Insulated Mug
The Hydro Flask 12 oz Insulated Mug is a 354 ml double-wall stainless steel mug that uses TempShield insulation to keep drinks hot for 12 hours or cold for 24 hours. It features a BPA-free construction, a handle, and a lid, and measures 3.25 by 4.5 inches; however, it must be hand-washed and is not suitable for microwave or freezer use. User feedback indicates the lid is not leakproof and the exterior rubber coating may wear with use.
- Material
- BPA-free double-walled stainless steel
- Gender
- unisex
- Category
- Home & Garden > Kitchen & Dining > Tableware > Drinkware > Mugs
Color
Size
Specifications
BPA-free double-walled stainless steel insulated mug with TempShield technology, watertight lid, and practical handle, perfect for enjoying beverages anywhere.
TempShield insulation keeps beverages cold for 24 hours or hot for 12 hours; watertight lid; practical handle.
- Material
- BPA-free double-walled stainless steel
- Gender
- unisex
- Age Group
- adult
- Condition
- new
- Dimensions
- 3.25x3.25x4.5 in
- Category
- Home & Garden > Kitchen & Dining > Tableware > Drinkware > Mugs
Additional Attributes
- BPA-free
- double-walled stainless steel
- TempShield technology
- watertight lid
- practical handle
- 354 ml (12 oz) fill capacity
- hand-wash only
- do not microwave
- do not freeze
Product Insights
The Hydro Flask 12 Oz Insulated Mug is a lightweight (227 g, 100 g lighter than Yeti, feels like ceramic) mug with TempShield insulation that keeps drinks steaming hot for 1–2 hours, warm for 3.5 hours, and cold below 50°F for 6+ hours. The handle stays cool even with boiling liquid inside. The press-in lid offers high spill resistance (9/10) and multi-vessel compatibility, and the slider opens wide for straws and chugging. However, buyers report the lid can leak when knocked over despite being labeled watertight, the 3.25-inch base does not fit most car cup holders, the rubbery soft-touch coating wears faster than Hydro Flask's powder coat and degrades with dishwasher heat, and the lid has hard-to-clean crevices and requires hand-washing. It is best for stationary sipping at desks, tables, or campsites. GQ named it Best Travel Mug with a Handle in 2024.
Verified claims
- Heat retention
- Steaming hot for 1–2 hours; warm for 3.5 hours.
- Cold retention
- Cold drinks stay below 50°F for 6+ hours.
- Taste
- Stainless interior scores 8.5/10 for taste purity.
- Spill resistance
- Buyers report the lid can leak when knocked over, despite being labeled watertight.
- Weight
- 227 g, 100 g lighter than Yeti, feels like ceramic.
- Lid
- High spill resistance (9/10) and multi-vessel compatibility; hand-wash only.
- Cup holder fit
- 3.25 in diameter base; does not fit most car cup holders (<3 in).
- Coating
- Buyers report the rubbery coating wears faster than Hydro Flask’s powder coat.
- Handle grip
- Soft-touch coating and handle size enable secure full-hand or one-finger carry.
- Heat isolation
- TempShield insulation keeps the handle cool even with boiling liquid inside.
- Warranty coverage
- Covers manufacturing defects and dislodged vacuum discs; proof of purchase required.
- Claim process
- Test insulation with boiling water; claim defective caps with photo.
- Cleaning
- Lid: top-rack dishwasher safe; no bleach; hard-to-clean crevices.
- Multi-vessel compatibility
- Same press-in lid fits multiple Hydro Flask tumblers and mugs.
- Drinking experience
- Slider opens wide for straws and chugging; closing traps heat.
- Straw compatibility
- Press-in lid slides open wide enough for reusable straws.
- Odor resistance
- Resists odor when hand-washed; lid is dishwasher safe.
- Authenticity
- Verify authenticity via an authorized purchase receipt and the mug's distinctive rubbery soft-touch finish.
- Insulation
- Hot coffee stays above 130°F for about 3.5 hours; the vacuum test checks for insulation failure.
- Finish care
- Dishwasher heat and hot water soaking degrade the soft-touch finish.
- Seated use
- Best for stationary sipping on desks, tables, or campsite chairs.
- Portability
- Portable in bags but too wide for car cup holders; lid is splash-resistant, not leakproof.
- Temperature
- Keeps hot drinks hot for over an hour and cold below 50°F for 6+ hours, with a slider to adjust drinking temperature.
- Care and warranty
- Hand-wash required; limited lifetime warranty covers manufacturing defects.
- Award
- GQ named it Best Travel Mug with a Handle in 2024 for its durable build and smooth liquid flow.
- Travel function
- 12 oz, 227 g, ergonomic handle, retains cold 6+ hours, doesn't fit most cup holders.
Product record
- Title
- 12 Oz Insulated Mug
- Brand
- Hydro Flask
- Price
- 34 CAD
- Availability
- In stock
Deep Research
Lifetime warranty coverage and claim process
- Hydro Flask provides a simple at-home test using boiling water: if hot spots appear on the exterior after 5 minutes, the vacuum is compromised and the mug qualifies for warranty replacement — giving you an objective, no-guesswork trigger for a claim.
- Even the common rattle from a dislodged vacuum disc — which the brand confirms does not affect insulation or safety — is covered under warranty and will be exchanged for free, demonstrating that Hydro Flask's support extends to user experience, not just functional failures.
- Warranty claims for a leaking or broken cap do not require mailing back the mug — you send a photo and description of the defect, and Hydro Flask will mail you replacement parts (like a silicone seal) or a new cap, solving the community's most-reported issue with minimal friction.
- The 12 oz mug is covered by Hydro Flask's limited lifetime warranty for manufacturing defects for the life of the product — no predetermined expiration date on coverage for the vacuum seal, handle, or stainless steel body.
- All warranty claims require proof of purchase, which serves as a built-in authenticity filter — especially relevant given community reports of counterfeit units that fail to insulate, as only genuine mugs bought from authorized dealers can access the lifetime warranty.
Press-in lid mechanics and cleaning
- The press-in fit creates a snug, secure bond with the mug's rim that won’t rattle loose during a commute, and unlike a screw-on lid, it pops off with a firm tug for fast refills — no threading to cross or strip.
- The slider opens wide enough to accommodate reusable straws, so you can transform the mug into a cold-brew tumbler without swapping lids or leaving the spout uncovered — a single lid bridges the hot-coffee / iced-tea divide.
- This same medium closeable press-in lid fits Hydro Flask's 24 oz Travel Tumblers, 16 and 20 oz All Around Tumblers, and a range of older 16 & 22 oz tumblers — buy a spare lid and it instantly works across half a shelf of Hydro Flask drinkware, reducing the number of different lids you need to track.
- Hydro Flask explicitly warns against using cleansers with bleach or chlorine on the press-in lid — exposure to these harsh chemicals can degrade the plastic and compromise the slider's smooth action or seal over time, so stick to mild soap even when machine washing.
- The closeable press-in lid is designed for top-rack dishwashers, so you can run it through a cycle for thorough sanitation — a job the mug body's double-wall insulation can't take — making this the low-effort half of your daily coffee routine.
- Closing the slider tames splashes and helps trap heat at the drinking spout, adding a layer of temperature control that compliments the vacuum insulation — the result is that your coffee stays hotter longer when you’re not sipping, and a bump won’t immediately send liquid onto your desk.
Handle design and drinking comfort
- The handle is coated in the same nearly rubbery, soft-touch finish as the mug body, which provides a slip-resistant hold even when hands are wet or cold — a subtle upgrade over slick stainless steel or hard powder-coated handles that can feel precarious when carrying a full drink over uneven ground.
- The handle is proportioned to allow a full-handed grip without being oversized, which makes the mug easy to tote around a campsite or carry with one finger through a strap — a practical detail that outdoor reviewers highlight as making the mug feel 'functional' and 'not too large to wrap your hands around'.
- Lifting the empty mug by the handle imparts a reassuring heft — at 10.5–11.2 ounces, it weighs about the same as a standard ceramic mug — which makes the drinking experience feel grounded and deliberate, rather than the hollow, lightweight sensation of many camp mugs.
- Because the double-wall vacuum insulation extends to the entire exterior, the handle never gets hot even when the mug is filled with just-boiled coffee — a safety advantage over ceramic mugs whose handles can become uncomfortably warm after a microwave or pour-over, and a feature that makes bare-handed carrying safe immediately after brewing.
Caring for the soft-touch exterior finish
- Even hand washing can damage the finish if the mug is soaked in hot water; a quick wash with a damp cloth avoids prolonged submersion that can discolor the soft-touch coating.
- Unlike Hydro Flask's standard water bottles that gained a heat-tolerant powder coat in 2020, the mug's soft-touch exterior is explicitly excluded from dishwasher use — the heat can discolor and degrade the coating, so only hand washing keeps it intact.
How it stacks up against Yeti, Klean Kanteen, and others
- At 227 g with the lid, the Hydro Flask is over 100 g lighter than the YETI Rambler 14 oz (340 g), reducing hand fatigue during long walks or commutes and making it the more carry-friendly daily mug.
- YETI's ceramic lining scored 9.5/10 for taste neutrality—higher than the Hydro Flask's 8.5/10 for bare stainless steel—suggesting coffee purists may detect less metallic carryover with the YETI, though Hydro Flask's stainless interior is still rated 'very good' and avoids the added weight of a ceramic coating.
- GQ magazine selected the Hydro Flask as its 'Best Travel Mug with a Handle' in 2024, highlighting rugged durability and a lid that lets liquid flow smoothly so you can finish your coffee quickly—an endorsement that signals it holds up in daily life better than most handled competitors.
- Comparative testing awarded the Hydro Flask's press-fit lid a 9/10 spill-resistance score versus the YETI MagSlider's 7.5/10, with the more secure, travel-focused seal reducing the risk of leaks when the mug is jostled in a bag.
- In side-by-side tests, the YETI Rambler 14 oz kept coffee above 140°F for over 4 hours while the Hydro Flask maintained 130°F for 3.5 hours, so YETI holds hotter longer; however, the Hydro Flask outperformed on cold retention, holding beverages below 50°F for more than 6 hours—making it the stronger choice for iced coffee drinkers.
Image Analysis
3 images- 01
Product
A matte sage-green insulated mug with a rounded cylindrical body, integrated C-shaped handle on the right, a pale mint plastic lid, and a reflective metallic rim. Front face shows a dark gray logo above the branded text near the base.
- Body shapeCylindrical body with a slightly rounded base and vertical sides, presented upright on a flat surface.
1 region
x 0.18 · y 0.32 · w 0.64 · h 0.56 (high) - FinishMatte textured finish on the exterior surface of the body and handle.
1 region
x 0.18 · y 0.32 · w 0.64 · h 0.56 (medium) - HandleC-shaped handle attached to the right side, same color and finish as the body, with a rounded internal grip profile.
1 region
x 0.62 · y 0.48 · w 0.26 · h 0.35 (high) - LidPale mint colored plastic lid sitting on top of the mug with a shallow recessed drinking area and a central circular closure feature.
1 region
x 0.24 · y 0.22 · w 0.52 · h 0.18 (high) - Metal rimReflective metallic band encircling the top edge of the body between the lid and the body surface.
1 region
x 0.24 · y 0.34 · w 0.52 · h 0.04 (high) - Logo markDark gray stylized mark printed on the front upper-middle of the body above the brand name.
1 region
x 0.36 · y 0.47 · w 0.28 · h 0.18 (high) - Brand text“Hydro Flask”
1 region
x 0.33 · y 0.74 · w 0.33 · h 0.06 (high)
Other
Studio-style product shot on a light wood surface with a vertically paneled soft green background; soft even lighting produces a short shadow to the lower right.
- SurfaceLight wood flat surface supporting the mug.
1 region
x 0.00 · y 0.84 · w 1.00 · h 0.16 (high) - BackgroundSoft green vertical panels behind the mug with two lighter vertical lines visible.
1 region
x 0.00 · y 0.00 · w 1.00 · h 0.60 (high) - Shadow and lightingSoft diffuse lighting with a faint shadow cast to the lower right of the mug.
Colors
sage green· body#AEB19Bsage green· handle#A9AC8Bpale mint· lidmetallic silver· metal rimdark gray· logo and brand text- Body shapeCylindrical body with a slightly rounded base and vertical sides, presented upright on a flat surface.
- 02
Product
Top/three-quarter view of a matte sage-green insulated mug with a snap-in lid that has a sliding oval sip cover, a visible metallic rim band, and an attached handle on the right side.
- Lid shapeCircular snap-in lid with a recessed central panel and a raised outer lip, occupying the top portion of the mug.
1 region
x 0.15 · y 0.03 · w 0.70 · h 0.50 (high) - Sliding sip coverOval/tongue-shaped sliding cover set into the lid with a contoured thumb recess; cover sits in a longitudinal slot and is shown in the closed position over most of the slot with a small open rectangular sip gap visible.
2 regions
x 0.36 · y 0.16 · w 0.28 · h 0.30 (high); x 0.38 · y 0.40 · w 0.18 · h 0.08 (high) - Metallic rim bandThin polished metallic band (gold-toned) circling the mug where the lid meets the body.
1 region
x 0.11 · y 0.45 · w 0.78 · h 0.08 (high) - HandleRounded, solid handle attached at the right side, matching the mug body color and finish.
1 region
x 0.76 · y 0.48 · w 0.20 · h 0.38 (high) - Body finishMatte textured cylindrical body in a desaturated sage-green color.
1 region
x 0.12 · y 0.42 · w 0.66 · h 0.52 (high) - Printed logoSingle-tone darker motif printed on the front of the mug body (stylized hand/leaf shape).
1 region
x 0.18 · y 0.62 · w 0.28 · h 0.18 (high)
Other
Image shows the mug placed on a light wood surface photographed from above at a slight angle; soft diffuse lighting with minimal harsh shadows; shallow crop excludes full base and left handle interior.
- Background surfaceLight wood tabletop visible behind and under the mug.
1 region
x 0.00 · y 0.00 · w 1.00 · h 1.00 (high) - Shot compositionTop three-quarter crop centered on the lid and upper body; lower portion of the mug base is cropped out of frame.
- Lighting and shadowSoft, diffused lighting producing gentle highlights on the metallic rim and mild soft shadowing on the right side of the lid and handle.
Colors
sage green· lid and body#D1DBCDwarm gold· metallic rim band#929E8Ablack· sip opening interior- Lid shapeCircular snap-in lid with a recessed central panel and a raised outer lip, occupying the top portion of the mug.
- 03
Product
Open-top insulated mug with visible stainless steel interior, a matte mint-green exterior body and matching detached lid; curved handle visible at right and printed logo on the outer wall.
- Open interiorCircular open mouth showing a smooth stainless steel inner wall and a flat stainless base inside the mug.
1 region
x 0.20 · y 0.08 · w 0.64 · h 0.44 (high) - Rim finishProminent shiny metallic rim band around the top edge with mirror-like reflections.
1 region
x 0.16 · y 0.06 · w 0.68 · h 0.12 (high) - Exterior bodyMatte mint-green cylindrical outer wall with a slight taper toward the base and a soft textured finish.
1 region
x 0.12 · y 0.30 · w 0.60 · h 0.52 (high) - HandleRounded C-shaped handle in the same mint-green finish, attached at two points to the mug's right side and projecting outward.
1 region
x 0.66 · y 0.26 · w 0.28 · h 0.46 (high) - Printed logoDark printed hand-shaped logo on the outer wall of the mug, positioned below the rim on the front face.
1 region
x 0.18 · y 0.42 · w 0.20 · h 0.16 (high) - Detached lid visibleSeparate matching mint-green plastic lid placed on the surface in front of the mug, showing a slide opening and raised molded iconography.
1 region
x 0.25 · y 0.72 · w 0.50 · h 0.22 (high) - Molded lid iconRaised molded hand-shaped icon and an angled triangle symbol visible on the lid surface.
1 region
x 0.32 · y 0.76 · w 0.36 · h 0.14 (high)
Other
Top-down angled studio shot on a light wood surface with soft even lighting and subtle shadows; image cropped to include mug and lid.
- Shot compositionCamera positioned above and slightly to the left of the mug producing a partial top-down perspective with the lid in the foreground.
- Background surfaceLight natural wood tabletop with visible grain running diagonally across the image.
- Lighting and reflectionsSoft diffuse lighting creating gentle highlights on the metallic rim and soft shadows beneath the mug and lid.
- Image qualitySharp focus on mug rim and lid details with slight depth-of-field falloff toward the lower mug body and background.
Colors
matte mint green· exterior body#9E9A7Astainless steel· interior#E4DBD3polished chrome· rim band#A2958A- Open interiorCircular open mouth showing a smooth stainless steel inner wall and a flat stainless base inside the mug.
Documents & Data
Customer Reviews
5 total5 reviews · out of 5
Tasse à café
Idéal pour mon travail, grosseur idéal et fini les cafés froids!
Excellent Purchase
This cup keeps your coffee HOT! I use it everyday and it keeps my coffee HOT for over an hour. Even after 2 hours, my coffee is still warm enough to enjoy. I like the style of a cup with a handle and the lip isn't overly thick like some insulated mugs. No regrets on this purchase.
Tasse Hydroflask 12 onces
Bon format et couvercle très étanche
Coffee staying hot
Great cup for keeping my coffee hot in the car as I head out for golf course or trip to country. Coffee hot enough to last sip !
Love this mug
Perfect size for morning beverages keeping drinks hot.
Q&A
9 answered- How durable is the rubber coating on the exterior? Does it peel or wear off over time with regular use?
- The rubber coating can wear over time with regular use. Community reports mention it may lose its texture or peel, and some users note it's less durable than competitors like Yeti.
- Is the lid a screw-on or press-fit design? Does it have a drinking hole or is it a solid lid?
- The lid is a press-fit design with a sliding closure. It has a drinking hole with a splash-proof slider, and it is straw compatible.
- What is the exact diameter at the base? Will it fit standard car cup holders (typically ~3 inches in diameter)?
- The base diameter is approximately 3.25 inches (8 cm), which is wider than standard car cup holders (typically about 3 inches). Reviewers confirm it does not fit in cup holders.
- Does the mug maintain its insulation performance (12 hours hot) in cold ambient temperatures, such as outdoors in winter?
- The product is rated to keep beverages hot for 12 hours using TempShield insulation. However, real-world testing by Advnture found it keeps drinks warm for about 3+ hours; cold ambient temperatures will likely reduce that time further due to greater temperature difference.
- Does the stainless steel interior retain coffee or tea odors after washing? Are there any special cleaning tips to prevent this?
- The stainless steel interior is designed for pure taste with no flavor transfer, so it should not retain coffee or tea odors when properly cleaned. The manufacturer recommends hand washing with warm water and soap; for tough stains, soak overnight with baking soda, then scrub with a non-abrasive brush.
- Does the Hydro Flask 12 oz mug keep coffee hot?
- Yes, it generally keeps coffee piping hot for hours, but some users find it too hot and recommend removing the lid to cool, while a few defective or counterfeit units fail to retain heat.
- Is the mug leakproof?
- No, the standard lid is not leakproof and may spill if tipped; some users replace it with a Yeti mag slider lid for better seal.
- Is it dishwasher safe?
- Hand washing is recommended; the rubber exterior may degrade in the dishwasher, and the lid can be harder to clean.
- How does it compare to Yeti?
- Many prefer Yeti for its dishwasher-safe, leakproof lid and overall durability, but Hydro Flask offers a more compact design and appealing aesthetics.
Reddit Insights
4 threads · r/BuyItForLife, r/Hydroflask, r/CoffeeReddit users have mixed feelings about the Hydro Flask 12 oz insulated mug: many praise its excellent heat retention and sturdy build, but common complaints include a non-leakproof lid, rubber coating wear, and occasional defective units.
Positive aspects like heat retention and build quality are frequently mentioned, but issues with lid seal, coating durability, and some units failing to keep hot lead to an overall mixed but leaning positive sentiment.
Themes
Use Cases
- Daily coffee drinking at home or office, letting coffee cool by removing lid
- Camping van or on-the-go use, appreciating heat retention but noting lack of spillproofness
- Commuting and travel, mug fits some cup holders and is secure in bag
Watch Out For
Compared To
vs Yeti
Yeti is often preferred for its dishwasher-safe, leakproof mag slide lid and better lid durability, though Hydro Flask wins on aesthetics and lighter weight for some.
vs Klean Kanteen
Klean Kanteen is praised for longevity and easy cleaning, but Hydro Flask's rubber grip and design appeal to some users.
vs Zojirushi
Zojirushi offers extreme insulation that some find overkill; Hydro Flask is more balanced for coffee drinking.
Source Threads
Hydro Flask coffee mug secure but lid annoying
I like my hydroflask coffee mug, but the lid is kind of a pain to take off and wash. It definitely feels secure in a bag though! It’s only ever lost the lid when dropped on concrete while running for a bus, and only has a small nick.
u/shawol52508r/BuyItForLifeView thread →
Hydro Flask coffee mug not dishwasher safe and coating wears
I like it, but I feel like there’s better cups out there. It’s not dishwasher safe or spill proof. The rubbery stuff on the outside doesn’t seem to be lasting that well on mine, when compared to the powder coat of my water bottle.
u/packyrbagsr/HydroflaskView thread →
12oz mug keeps coffee hot, lid off to cool
I love mine. Lets you take your time drinking the coffee, or you can take the lid off if you want it to cool off.
u/drbhrbr/CoffeeView thread →
Mug should keep coffee hot; counterfeit/faulty units exist
Between my wife and myself, we have 3 coffee cups by Hydro Flask, and I’ve bought a counterfeit bottle in the past. What you’re experiencing is not normal.
u/InOPWeTrustr/HydroflaskView thread →