The BISTRO Double Wall Glass Line 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.