Our vacuum insulated 16 ounce TKWide bottle was designed with versatility and portability in mind, to create the best water bottle, iced coffee mug, sport bottle and insulated cup, all in one package. The 16 oz TKWide features our TK Closure internal thread design with smooth, rounded lip for comfortable drinking and easy cleaning. Comes with the leak proof Twist Cap with built-in reusable steel straw.