Coffee or beer? Both suit the Tumbler just fine. Made from durable 18/8 food grade stainless steel, the 16 ounce Tumbler is designed to last and travel safely where glass can’t go. Double-wall vacuum insulation and electropolished stainless steel don’t impart or retain flavors and keeps contents hot or iced for hours. Durable and won’t break like glass. Electropolished interior and laser-etched exterior. Each stainless insulated tumbler includes the pint lid.