When form follows function, design just works. Abiding by this belief, the bistro coffee mug serves best if used to keep ice-cold drinks cold and hot drinks hot. The Bistro family of mugs is streamlined: shaped without many edges and corners, employing a form for everyday use with the special double wall glass thermal effect. The Bistro line is made of mouth-blown borosilicate glass known for its amazing insulating qualities. It is a perfect glass line for people enjoying a whole range of beverages, from ice-cold drinks to espresso or café latte.