S’well bottle with vacuum insulation Technology and triple-layered insulation, which includes a copper layer for enhancing heat retention performance, S’well bottles are able to keep any liquid hot or cold for long stretches, while maintaining a condensation-free exterior.

When we test the s’well bottle with ice cold water or hot water to do the heat retention test in a standard lab environment “24℃+/-2℃”, we can see how exactly it works to keep ice cold 24 hours and hot 24 hours.

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