The best water bottle.Stainless steel insulated reusable and sized for epic days-our 40 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 hotTempShield double-wall vacuum insulationLeakproof when closedPure taste no flavor transferDurable stainless steelWide Mouth opening is ice-cube friendlyBPA-FreeNot for use on a stove in a microwave or freezerKeep hot liquids out of the reach of children