The Klean Kanteen TKWide 20 oz Insulated Bottle with Twist Cap was designed with versatility, and portability in mind. It features the TK Closure™ internal thread design with smooth, rounded lip for comfortable drinking and easy cleaning. This bottle comes with the leak proof Twist Cap with built-in reusable steel straw. Enjoy your favorite beverage with the Klean Kanteen TKWide 20 oz Insulated Bottle with Twist Cap!