We tested triple-layer vs dual-wall bottles to see how much of a difference the copper layer really helps. For one test, we used styrofoam caps to remove the impact of the lid from the insulation as much as possible, which let us focus on differences in the heat transfer through the walls. In the 2nd test, we used the manufacturer's lids.

See the full video here!
[ Ссылка ]

Bottles tested in the full video:
Dual-Wall:
Klean Kanteen 32-ounce TKWide Insulated: [ Ссылка ]
Hydro Flask 32-ounce Flex Straw: [ Ссылка ]
Hydro Flask 32-ounce Trail Series (lighter): [ Ссылка ]
Takeya Actives 32-ounce (includes Matching Bottle Boot): [ Ссылка ]
Camelbak Chute Mag 32-ounce: [ Ссылка ]
Ozark Trail 32-ounce: [ Ссылка ]
Steepware 22-ounce Tea Tumbler: [ Ссылка ]
FJbottle 34oz: [ Ссылка ]
YETI 36-oounce Chug Cap: [ Ссылка ]
Iron Flask 40-ounce: [ Ссылка ]
Stanley Quencher 40-ounce: [ Ссылка ]

Triple-Layer
RevoMax 32oz: [ Ссылка ]
EcoVessel Boulder Series 32-ounce: [ Ссылка ]
S’well 25oz (the narrow mouth from this video): [ Ссылка ]

Mentioned but not tested:
Owala 32oz (says triple layer on their website but double wall on their Amazon listing): [ Ссылка ]

Need an accessory for your big bottle? Check out our store!
BottlePro’s Full Amazon Store: [ Ссылка ]
BottlePro Max Cup Holder Adapter: [ Ссылка ]
FlavorFuze Pod (drop-in fruit infuser for any wide mouth bottle): [ Ссылка ]

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