Our 20oz TKWide insulated water bottle was designed to create the best water bottle, iced coffee mug, and insulated sports bottle, all in one package. TK Closure™ internal thread design with smooth, rounded lip for comfortable drinking and easy cleaning. Comes with the Insulated Wide Loop Cap which creates a full stainless steel interior, increases thermal performance, and has an easy-carry swivel loop. Easily transition between other interchangeable caps like our Chug Cap or Twist Cap for quick hydration.