Lifeline 7504BL Blue Stainless Steel Wide Mouth Water Bottle - 18 oz. Capacity 18 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