SIGG, a Swiss company, has been producing its aluminum water bottles for a hundred years, but a great many Americans haven’t a clue about the company or its products. The growing desire for quality, reusable bottles combined with the relatively new worries about leachate from plastic bottles is changing that. If you haven’t yet tapped into “The Original Swiss Bottle,” here’s your introduction. Made of aluminum, SIGG bottles are just about as light as their...