Staying hydrated throughout the day just got easier - from the morning commute to the drive home, this 16 oz. insulated tumbler will keep drinks at optimal temperatures! Constructed of 18/8 medical-grade stainless steel, this tumbler features Hardshell (TM) powder coating the prevents peeling, a press-on lid and Thermo 3D® double wall vacuum insulation – keeps hot stuff hot and cold stuff cold. MiiR (R) gives 3% of revenue to trackable giving projects.