
Which Insulated Tumbler Brand Wins?
This head-to-head test of 15 insulated tumbler options has the measured results for each. See how they ranked and watch the full test video.
Corkcicle
Price shown in test: $45
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The quick take
No single winner was declared in this test. Here is where the top-ranked pick landed, straight from the measured results.
Best in 2 of 5 measurements, including Cold Retention and Hot Retention.
The measured results
Every number below is read straight from the test. Products are listed in the order they finished.
Tip Over Leak
- 1Corkcicle
leaked just about the same amount as the Milwaukee when tipped over on its side; leaks pretty badly around the straw gasket when facing upside down
- 2Stanley Quencher H2.0 Tumbler
leaked a little bit more than the Tervis Cat when tipped over; performed about the same as the Tervis Cat facing upside down
- 3Buc-ee's
leaks pretty badly, just like the CamelBak, both when tipped over and when facing upside down
- 4Chilamics
small amount of water splashed out when tipped over; did not leak when gently placed upside down
- 5Ozark Trail
small amount of water seeping out of the lid when tipped over; held all the water in when placed upside down
- 6Contigo
not designed to prevent tip-over leaks; leaks quite a bit of water when facing upside down
- 7Arctic Tumblers
first tumbler in the lineup with zero leakage; held all the water when tipped over and when upside down
- 8Beast
held in all the water when tipped over and when placed upside down
- 9CamelBak
struggled badly tipping over on its side and leaked pretty badly facing down
- 10Norday
held everything in when tipped over and when facing upside down
- 11Tervis Cat
leaked a small amount when tipped over ('marks its territory just a little') and leaked more when facing upside down
- 12Yeti MagSlider
performed a little better than the Stanley both tipped over and facing upside down
- 13BruMate
did not leak a drop tipped over or upside down with the straw position closed; with the straw open, a small amount of leakage tipped over and a little more upside down
- 14Milwaukee Packout
leaked a small amount tipped over; a slow drip facing upside down
- 15Uninsulated cup
performed as well as many of the insulated tumblers when tipped over, but leaked pretty badly facing upside down
Cold Retention
- 1Corkcicle42.4 F
best of all tumblers tested, moved into the lead over the Stanley
- 2Stanley Quencher H2.0 Tumbler42.8 F2nd
close second place behind the Corkcicle
- 3Buc-ee's43.9 F
coolest yet at that point in the test order
- 4Chilamics48.7 F
worst cold retention of all tumblers tested
- 5Ozark Trail45.1 F
about 3.5 degrees cooler (better) than the Chilamics
- 6Contigo45.9 F
- 7Arctic Tumblers45.7 F2nd
moved into second place behind the Ozark Trail
- 8Beast44.8 F
moved into the lead at that point in testing
- 9CamelBak44.6 F
moved into the lead at that point in testing
- 10Norday46.6 F
struggled to keep the water cool
- 11Tervis Cat46.2 F
barely edged out the Norday, about 1.5 degrees warmer than average
- 12Yeti MagSlider44.6 F
a little better than average but not as good as the Stanley
- 13BruMate43.5 F
almost as well as the Stanley
- 14Milwaukee Packout44.4 F4th
better than average, fourth place behind the Buc-ee's
- 15Uninsulated cup
not applicable, this baseline was used only in the hot-retention freezer test
Hot Retention
- 1Corkcicle126 F
after 4 hours in the freezer, by far the best of all tumblers tested
- 2Stanley Quencher H2.0 Tumbler120.2 F2nd
second best behind the Corkcicle, tall/narrow design credited
- 3Buc-ee's111.9 F
a lot better than average
- 4Chilamics107.6 F
better than the uninsulated cup but near the low end
- 5Ozark Trail106.7 F
trailed the Chilamics by almost 1 degree
- 6Contigo116.1 F
about 8.5 degrees hotter (better) than the Chilamics, credited to its tall/narrow profile and lid design
- 7Arctic Tumblers104.9 F
struggled, about 2 degrees cooler than the Ozark Trail
- 8Beast104 F
transcript says this is 'about a degree warmer than the Arctic Tumblers,' but the Arctic Tumblers figure given is 104.9 F, so 104 F is actually colder, not warmer; kept verbatim and flagged as an internal inconsistency rather than corrected
- 9CamelBak115 F
performed very well, credited to its tall/narrow profile like the Contigo; transcript then says the Tervis Cat 'struggled...just like the Contigo and CamelBak,' which is inconsistent with CamelBak's own strong 115 F result here; kept verbatim and flagged rather than resolved
- 10Norday104.9 F
about the same as the Arctic Tumblers
- 11Tervis Cat103.8 F
described as struggling in this test
- 12Yeti MagSlider108.5 F
a little better than average but not as good as the Stanley
- 13BruMate108.3 F
better than average despite not being marketed for hot liquids
- 14Milwaukee Packout112.8 F
a lot better than average
- 15Uninsulated cup
mostly frozen after 4 hours in the freezer; specific numeric temperature not stated, described only as 'mostly frozen'
Tip Stability
- 1Corkcicle14.6 degrees
struggled laying down
- 2Stanley Quencher H2.0 Tumbler15.6 degrees
looked unstable but performed better than some other brands
- 3Buc-ee's16.8 degrees
quite a bit better than average
- 4Chilamics18.1 degrees
performed well
- 5Ozark Trail14.7 degrees
- 6Contigo15.7 degrees
better than the Ozark Trail despite being tall and narrow
- 7Arctic Tumblers16.7 degrees
less likely to tip than most of the previously tested tumblers
- 8Beast17.1 degrees2nd
moved into second place behind the Chilamics
- 9CamelBak10 degrees
flopped over, the worst stability result in the video; narrow rounded bottom design called out as poor
- 10Norday
no specific degree figure stated in the narration; described as looking stable, but rubber padding on the bottom hurt its actual performance
- 11Tervis Cat17.8 degrees
stayed on its feet better than most of the competition
- 12Yeti MagSlider17.7 degrees3rd
extremely well, third place behind the Tervis Cat
- 13BruMate12.3 degrees
next to last place, very prone to tipping over due to a narrow bottom
- 14Milwaukee Packout14.8 degrees
struggled, described as definitely tip-over prone
- 15Uninsulated cup18.4 degrees1st
outperformed every insulated tumbler tested, finishing first place
Drop Test
- 1Corkcicle
metal straw hit the concrete floor and became bent on impact; small amount of water loss, lid itself not damaged
- 2Stanley Quencher H2.0 Tumbler
lid cover flew off on impact and lost a few oz of water, but the lid attachment snapped back into position with no damage
- 3Buc-ee's
lid cover flew off and the sliding cover detached on impact, but was found and snapped back into position without damage
- 4Chilamics
lid came off on impact, spilling close to 30 oz of water, and the lid broke into two pieces
- 5Ozark Trail
lid came off on impact making a mess, but the lid itself held up with no visible damage
- 6Contigo
lid took a big impact but stayed on the tumbler; only a few oz of water leaked and no damage to the lid
- 7Arctic Tumblers
lid stayed mostly in position, losing only a few oz of water, but part of the lid cover broke and the lid became very difficult to open afterward
- 8Beast
lid stayed on after impact, but part of the lid cover broke
- 9CamelBak
lost its lid cover on impact, made a mess, but the lid itself survived without damage
- 10Norday
lid came off, and though not visibly damaged it developed a pretty bad crack so the slider no longer opens fully
- 11Tervis Cat
took a big bounce on impact and the lid came off, but both lid and tumbler survived without damage
- 12Yeti MagSlider
lid stayed on impact, but the magnetic slider detached; it went back into position without damage
- 13BruMate
screw-on lid stayed in place; only a very small amount of water escaped and no damage to the lid
- 14Milwaukee Packout
rotating lid cover flew off on impact but snapped back into position with no damage
- 15Uninsulated cup
not mentioned in the drop test section
Lid Open Force
- 1Corkcicle
no force figure given in the narration; the sentence describing this test cuts off ('Let's get the Corkcicle since it remains open with the straw'), likely a caption gap
- 2Stanley Quencher H2.0 Tumbler678 g
pretty easy to rotate
- 3Buc-ee's620 g
raised grip area in a good location, easy to grip and work with
- 4Chilamics800 g
about 2 lb of force
- 5Ozark Trail644 g
easier to open than the Chilamics
- 6Contigo340 g
moves without much force, though the push/pull point location makes it a little challenging
- 7Arctic Tumblers380 g
easy access and minimal effort
- 8Beast1,176 g
about three times the force needed for the Arctic Tumblers
- 9CamelBak2,228 g
the most force needed of any tumbler tested, described as surprisingly stiff
- 10Norday1,468 g
does not slide easily; raised grip area harder to work with than the Buc-ee's
- 11Tervis Cat468 g
very easy to work with, minimal force
- 12Yeti MagSlider402 g
very smooth and easy with the magnetic slider
- 13BruMate556 g
part of the lid cover has to rotate to access the straw
- 14Milwaukee Packout636 g
well designed and pretty easy to access, though a little more force than some other brands
- 15Uninsulated cup
not applicable, no lid
Capacity Test
- 1Corkcicle
overflowing before the lid can be fully installed at 30 oz
- 2Stanley Quencher H2.0 Tumbler
holds the advertised 30 oz with room left for the lid
- 3Buc-ee's
barely held 30 oz with not enough space left for the lid
- 4Chilamics
holds 30 oz but there is not enough space inside for the lid
- 5Ozark Trail
seems to hold about the same amount of water as the Chilamics; lid fit not explicitly confirmed
- 6Contigo
rated for 32 oz; held 30 oz with room to spare for the lid
- 7Arctic Tumblers
holds very close to 30 oz
- 8Beast
first 30 oz tumbler in the video that actually holds 30 oz with enough room left for the lid
- 9CamelBak
holds 30 oz and almost has enough room for the lid
- 10Norday
almost ran out of space for 30 oz
- 11Tervis Cat
very close to overflowing with 30 oz
- 12Yeti MagSlider
holds 30 oz without the lid, but not enough space for the lid
- 13BruMate
holds 30 oz but overflows before the lid can be installed
- 14Milwaukee Packout
holds 30 oz but the lid does not fit
- 15Uninsulated cup
not mentioned in the capacity test section
Corrosion
- 1Corkcicle
small amount of corrosion on the top of the tumbler
- 2Stanley Quencher H2.0 Tumbler
a little more rust than some of the less expensive tumblers, called an area for improvement
- 3Buc-ee's
about the same as the CamelBak, just a small amount of rust
- 4Chilamics
experienced quite a bit of corrosion, among the worst tested
- 5Ozark Trail
small amount of rust, not nearly as bad as the Chilamics
- 6Contigo
about the same amount of oxidation as the Ozark Trail
- 7Arctic Tumblers
by far the best result seen at that point, no corrosion at all
- 8Beast
about the same amount of corrosion as the Ozark Trail and Contigo
- 9CamelBak
performed better than the Beast, but not as well as the Arctic Tumblers
- 10Norday
a lot more rusting than most of the other brands
- 11Tervis Cat
performed a lot better than most of the other brands
- 12Yeti MagSlider
extremely well, no corrosion at all
- 13BruMate
extremely well, no rust at all
- 14Milwaukee Packout
better than average overall but flagged as an area that could use improvement
- 15Uninsulated cup
not mentioned in the corrosion test section
All measurements (1 more)+
Weight
- 1Corkcicle635 g
- 2Stanley Quencher H2.0 Tumbler523 g
- 3Buc-ee's423 g
- 4Chilamics304 g
lightest tumbler tested
- 5Ozark Trail458 g
- 7Arctic Tumblers410 g
- 8Beast429 g
- 9CamelBakjust under400 g
- 10Norday395 g
- 11Tervis Cat439 g
- 12Yeti MagSlider488 g
- 13BruMate636 g
- 14Milwaukee Packout534 g
- 15Uninsulated cup58 g
- 6Contigonot tested
How it was tested
- tip-over spill/leak test, tipped on its side and placed fully upside down
- cold beverage temperature retention after about 6 hours at roughly 75 F room temperature
- hot beverage temperature retention after 4 hours in a -40 F freezer
- tip angle stability test, degrees of tilt required to reach the tipping point
- 30 inch drop/impact durability test onto a concrete floor
- lid opening force, measured in grams
- 30 oz capacity test, whether the tumbler holds 30 oz with the lid still fitting
- corrosion resistance test using hydrogen peroxide, vinegar, and salt
Data notes and caveats
No single overall winner is declared. The reviewer converts raw scores to letter grades and names three separate favorites in the closing summary: Buc-ee's (best hot and cold beverage grades, stable, average corrosion resistance, but spills if tipped), Stanley (very strong temperature retention, top heavy), and Corkcicle (numerically the best performer in both temperature tests, most expensive, described specifically for cold beverages). Because no single verdict sentence names one overall winner, winner/runnerUp/verdictQuote are left null per spec rather than inferring one from Corkcicle's numeric lead. Two brand-name mangles were resolved by matching the fixed testing order against the description's Products Tested list: 'Chillout Mix'/'Chillamic'/'Chilamix' to Chilamics, and 'Thermos Cap' (corrosion section only) to Tervis Cat. Two internal transcript contradictions were preserved verbatim rather than silently corrected: the Beast's 104 F hot-retention reading is called 'about a degree warmer than the Arctic Tumblers' despite Arctic Tumblers scoring higher at 104.9 F, and the Tervis Cat's 103.8 F 'struggled' result is described as being 'just like the Contigo and CamelBak' even though those two scored well (116.1 F and 115 F) in the same test. Contigo's weight is missing from the transcript entirely ('the heaviest yet g.' with no number spoken), kept null rather than guessed. Chapters were null in the video metadata.


