With all the strength and function of its bigger brothers this half quart thermos packs easier when space is a premium fully leak proof it39ll keep your drink warm and your pack dry vacuum insulation keeps drinks hot or cold 15 hours or iced 60 hours 188 stainless steel wonrsquot rust naturally bpa free insulated lid doubles as cup leak proof and fully packable capacity 16oz 473ml weight 101lb dimensions 31 x 31 x 104 in