Be at the very top of your competitors with this top notch tumbler as your next promotional gift item. This tumbler is made of an acrylic outer and inner layer to provided efficient double walled insulation to keep its contents in optimum shape throughout its usage. Inserted in between this acrylic layers are ultrasonically sealed designs to keep these designs permanent. To top up the design of this cup, its has a snap-on, spill-resistant thumb-slide lid with rubber gasket to reduce friction.