Fifty/Fifty Black Vacuum-Insulated Stainless Steel Bottle with Wide Mouth - 40 oz. Capacity and Straw Cap Stainless Steel 4.2" high 4.3" wide 40 ounce wide mouth style High quality vacuum insulation keeps liquids hot or cold for hours Double-Wall technology prevents condensation and keeps outside of bottle at a comfortable temperature Lightweight 18/8 stainless steel is 100 percent recyclable Stainless steel construction requires no liner and will not retain odor or taste