The best water bottle.Stainless steel, insulated, reusable.- our 64 oz wide-mouth bottle is the flask to grab to keeps a whopping half-gallon of cold drinks cold and hot ones hot.The opening makes it easy to add ice.- and get 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.