Pink 12 oz Insulated Tumbler. This premium 12 ounce tumbler is made of 304 stainless steel with double-wall vacuum insulation technology, which means the space between the stainless steel walls is void of matter.With no medium for heat to transfer, your drink's temperature will not be impacted by the outside temperature. It will always be comfortable to hold and never make a watery mess in your hand or on your table. Keep your drinks cold or hot with this creative and technological cup.  It comes with a lid.