Stay hydrated with the most stylish beverageware on the market. The Thermos 18 oz. Insulated Double Wall Hydration Bottle features a unique design for a dash of personal style. Double wall construction provides insulation to keep drinks cold and the bottle sweat-proof. Made from BPA-free, impact-resistant plastic, this bottle is dishwasher safe. The durable lid features a carry loop for ultimate convenience. Features: Made from BPA-free Eastman Tritan plastic. Durable lid and carry loop. Double wall construction provides insulation. Dishwasher safe. Sweat-proof design.