Premium Double-Walled Insulated Stainless Steel Water Bottle with 2 Lids and Straw

Double-Walled Vacuum Insulation System:this insulated water bottle features a multiple-layer insulation structure: painted coating, 304 stainless steel outer layer, vacuum middle layer, and 304 internal stainless layers. Dual stainless steel materials allow for better insulation. And this water bottle is able to keep beverages hot for up to 12 hours and cold for 24 hours.