Nalgene Flask 12 oz Ruby Red Hydration Bottle. For quick refreshment, reach for the Nalgene Flask. Whether you keep it in your pocket, your purse or your pack, it stays neatly tucked away when not in use. Nalgene ingenuity makes it leakproof; a slender profile makes it bulky proof.Product Features:Contains 12 ounces (350 ml)Features one-ounce capFits easily into bags and packsProvides long-term storage solutionsIncludes durable insulation sleevePrevents plastic taste and odorFlask weighs 122g. If you take off the sleeve and the shot cap the wei