Double-walled, 18/8 stainless steel thermal tumbler with copper vacuum insulation and a push-on lid with a thumb tab.
This tumbler has superior insulation. The copper plating on the inner wall serves as an extra line of defense against temperature transfer. Heat escapes slowly so your hot coffee stays hot, even in a snowstorm, and heat enters slowly so your ice water doesn’t melt, even under the blistering summer sun. On average, copper vacuum insulation can make a difference of up to 9 degrees over the course of 24 hours.
Wash before the first use - Do not microwave - Hand wash recommended.
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