Stay refreshed and hydrated through your busiest days with the Stanley IceFlow Flip Straw Tumbler. Double-wall vacuum insulation keeps your water frosty for hours, and the built-in flip straw snaps shut to help prevent spills when on the move. An eco-friendly 30 oz. construction free of harmful BPAs and an easy carrying handle make it the wise choice for daily hydration, from morning commutes to meetings to gym sessions and everywhere in between!