22 oz.Silver Duo Copper Vacuum Bottle & Tumbler. Enjoy a beverage by drinking through the tumbler which has a screw-on lid with slide opening, or a bottle with screwed-on top, closed with a stainless steel lid. Durable, double-wall stainless steel vacuum construction with copper insulation, allows your beverage to stay cold for 24 hours and hot for at least 8 hours with the easy sipping lid. Laser engraved with Schindler logo (shows much clearer in person - new photo coming soon)