18/8 STAINLESS STEEL CONSTRUCTION, DOUBLE WALL INSULATED, KEEPS BEVERAGE HOT OR COLD FOR UP TO 12 HOURS, LEAK PROOF SCREW-ON LOOP CAP, LOOP CAP EASILY ATTACHES TO A CARABINEER OR LANYARD. HAND WASH ONLY. FDA CERTIFIED. COMPLIES WITH CPSIA, FDA, PROP 65. 10.25" H X 2.75" DIAMETER