Made Of Stainless Steel With Copper Plated Inner | Double Wall Construction For Insulation Of Hot Or Cold Liquids | Screw-On, Spill-Resistant Sip Through Lid | Vacuum Insulated | Keeps Drinks Cold Up To 24 Hours And Hot Up To 3 Hours | Non-Slip Bottom | Perfect For Golf Enthusiasts | Condensation Free | Patented Texture Finish | Swig LifeTM Is A Certified SWaM Owned Business | Meets FDA Requirements | BPA Free | Dishwasher Safe