The new modern, wine glass inspired silhouette is the new Swoo favorite for all your drinking needs, from wine to water and everything in between. Stemless goes where glass can't! Enjoy your favorite cold or hot beverage anytime, anywhere. Triple insulated stainless steel will keep your drink cold for up to 9 hours, even in the sun! Keeps your tea or coffee hot for up to 3 hours too! Includes shatterproof plastic lid designed to be sipped through and spill resistant. Easy grip flat sides and no slip bottom means this tumbler will stay where you put it. Built in slider is easy to use and when closed between sips help the tumbler maintain temperatures.