Sip or gulp Nalgene's MultiDrink water bottle let's you choose between a pivoting straw mechanism or narrow mouth loop top to stay hydrated or quench your thirst. Sip from the pivoting straw straw mechanism pivots in and out and secures with a leakproof lock when not in use. Gulp from the traditional narrow mouth loop top opening. Wide mouth screw on cap for easy cleaning, filling, or adding ice cubes. Tough and impact resistant. BPA free made from Eastman Tritan copolyester. Taste and odor free. Dishwasher safe. 63 mm cap fits other Nalgene wide mouth bottles. Capacity: 20 fluid ounces. Weight: 5.1 oz..