biwi Bottle - Designed for you. Premium quality insulated hydration water bottle Executive style black matte rubber paint finish has a stainless steel life time guarantee &ndash; Multi purpose design keeps water cool for hours and comes with an easy flow straw &ndash; 25oz capacity - BPA free and FDA approved biwi bottle original - Premium quality insulated hydration water bottle Executive style black matte rubber paint finish has a stainless steel life time guarantee Multi purpose design comes with a straw - 750ml capacity - BPA free and FDA approved