We took our signature SBR Flag Logo and engraved it on this high-grade, double-walled 18/8 stainless-steel tumbler. This vessel is made with BPA-free components and designed to fit in any standard cup holder. The 30-ounce SBR Flag Logo Tumbler is rated to keep drinks hot for three hours or cold for over 50 hours. It comes with a clear, shatterproof fixed-opening lid.