Our 64 oz TKWide insulated water bottle was designed with versatility and portability in mind. to create the best wide-mouth water bottle for sports. camping and backpacking. or water transport and storage. The TKWide 64 oz features our TK Closure™ internal thread design with rounded lip for easy pouring and 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 for quick hydration.