The Iron Flask 16 oz Classic 2.0 Tumbler is made from the same double-walled vacuum-insulated stainless steel of the classic tumbler; which keeps your beverages cold for 12 hours and hot for 3 hours with no sweat. But this time, we’ve made it leak-proof, and with a rubber bottom that makes it non-slip and noise-proof! It comes with two insulated lids; a splash-proof straw lid with two straws, and a 100% leak-proof flip lid, so you can choose how to enjoy your fav drink. Take your cup holder-friendly tumbler anywhere you go.
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