Design for Living 5113147 Double Wall Tritan Water Bottle with Crackle Gel and Flip Top Lid, 18-Ounce, Smoke Perfect for everyday use 18-ounce capacity double wall water bottle Flip top lid makes drinking simple; sized to meet the needs of todays consumer Constructed of durable Tritan plastic; crackle gel keeps drinks at desired temperature for a longer period of time Hand wash with warm water and a mild detergent; not dishwasher safe