Vacuum insulation: classic tumblers are double walled and vacuum insulated, by the pool, at the office, in your car, wherever - tumbler keeps your favorite drinks icy cold or piping hot for hours, also combined with a splash resistant lid and you get additional thermal control
Simple color and wide usages: the classic and journey tumblers can be applied as wine cups, champagne cups, water cup or sports fan travel mugs, suitable for parties, picnics, self-driving travelling, boats, beach, pool, camping and hiking, etc.
