The Active Tumbler is stainless steel and vacuum-insulated to keep your drinks cold for 6 hours! The straw spout makes it easy and comfortable to drink from while on the go.
Temperature tolerance: 43-212℉. For maximum insulation efficiency, pre-cool the tumbler prior to use by filling in a bit of cold water for 1-2 minutes. Do not place in boiling water, microwave, or dishwasher. Handwash with care.