30-oz. double wall vacuum insulated tumbler (bc8807) with stainless steel straw (st20800). 18/8 powder coated stainless steel with copper lining; clear as pressure lid; 18/8 food grade stainless steel straw with detachable silicone spout for easy cleaning; straw cleaning brush included fits in standard cup holders. not microwave safe, hand wash only. packaged in retail box. keeps drinks hot and cold longer!