Fewer refills = better hydration—all thanks to the Owala 40oz Tumbler. But this is no ordinary insulated cup. It also has an awesome 2-in-1, sip-or-swig lid. Another handy feature? The Owala Tumbler fits easily into most cup holders, making it the perfect car companion. 40oz stainless steel, insulated bottle 2-in-1 lid lets you sip or swig Removable, reusable straw Right and left hand friendly Splash-resistant lid Double-wall insulation keeps drinks colder longer Wide opening for cleaning and adding ice BPA and phthalate-free Dishwasher-safe lid and hand-washable cup ***see photos for imperfections.