Strong, tough, robust and sexy barely describe our man of steel. The Dopper Steel is in fact so popular that it took sinews of steel to join the virtual queue. We totally understand this, as this steel Dopper is a shiny masterwork of industrial design. And yes, let’s be honest: size does matter. The Dopper Steel can hold its drink; in fact 800 ml of it. Nearly twice as much water as the Dopper Original. Ideal for the voracious waterholics, or couch potatoes who need a day’s planning to negotiate the kitchen sink.