18 oz- Wide Mouth, BPA- Free Water Sport Bottle, with Measuring Marks on bottle by Truego &trade; Large opening makes cleaning and adding ice cubes easy, Resistant to staining and won't retain odors. Easy to carry with Hand Grip design Features leak-proof cap with loop attached to bottle. So youll will never lose the lid Marked on one side with milliliters and ounces markings for easy measurement High-density PCTG construction, Made of BPA- free Material,