Those who appreciate fine elegance will gravitate towards this coffee glass. Its double-walled design offers a strong insulation system that keeps your delicious, comforting beverages steaming hot much longer. The graceful twisting arcs give it a timelessly classic feel sure to impress. Mouth-blown of 2 layers of lightweight, durable borosilicate glass keeps drinks insulated, wont form condensation on outside dishwasher and microwave safe