Stainless steel, insulated, refillable, reusable —our all-day 32 oz wide-mouth water bottle is the flask to grab to keep cold drinks cold and hot ones hot. The large opening makes it easy to add ice —and get yourself a bigger gulp. 24 hours cold, 12 hours hot TempShield®️ double-wall vacuum insulation Leakproof when closed Pure taste, no flavor transfer Durable stainless steel Wide Mouth opening is ice-cube friendly BPA-Free Not for use on a stove, in a microwave or freezer Keep hot liquids out of the reach of children