Use these handy bottles from new steel sipper to store and carry water easily and stylishly, can be used while "On-the-go" In addition to home/refrigerator use, you can store not just water, but also your favorite juice or lime water, water tight thus prevents spillage, wide base makes it stable, wide mouth eases filling and cleaning,tab on cap makes it easy to open. This is of stainless steel but it is not insulated as it is a sports sipper