Dominate your to-do list with the 20 oz. AUTOSPOUT Sheffield Stainless Steel Water Bottle. This water bottle features stainless steel with vacuum insulation to keep drinks cold for up to 20 hours! The vacuum insulation also helps to eliminate sweating for improved grip. The one-touch-button spout releases for easy one-handed drinking from a straw. When the spout is not in use, the built-in spout shield keeps it clean. The ergonomic handle offers a comfortable grip. It has been said that improved hydration increases productivity. It has also been said that a water bottle is a good way to hydrate. This water bottle is engineered to be top-rack dishwasher safe for easy care and it fits in most cup holders. Note : When using the water bottle at high altitudes, such as during an airplane flight or when bottle is exposed to prolonged hot temperatures, such as in an enclosed car, twist the lid a quarter turn to relieve pressure, then reseal the lid before use.