24 hours cold, 12 hours hot TempShield️ double-wall vacuum insulation Leakproof when closed Pure taste, no flavor transfer Durable stainless steel BPA-Free Dishwasher safe Not for use on a stove, in a microwave or freezer Keep hot liquids out of the reach of children water bottle, leakproof, insulated, 24 hours cold, 12 hours hot, dishwasher safe, 18 oz, cupholder compatible