Mitten Coolers' tumblers are a laser etched design on a double-wall with vacuum insulated construction that holds heat and cold up to 2X better than plastic tumblers!   Each metal tumbler features high quality construction guaranteed to impress.  And, their quality construction will hold ice up to 24 hours!  Each tumbler features a pressure-fit plastic lid and our metal tumblers were designed to fit in all standard cup holders.