Remember the old metal canteen Made from durable Eastman Tritan with a threaded leakproof cap, the Nalgene Oasis is as tough as it is stylish and the coolest canteen in camp.. . 32 ounces 946 mL of hydration in an easy to hold shape. 38 mm Narrow Mouth closure just like Nalgenes Narrow Mouth water bottles. Guaranteed leakproof with a threaded cap. Dishwasher safe made sure the closurelid does not touch the heating element. Made from Eastman Tritan, an extremely impact resistant material that does not retain tastes, odors, or stains. Dimensions: 8 12 height x 4 78 x 3 18 in.. Weight: 4.58 oz. 130 g. BPA free.