The Grizzly Grip Rocks 11 oz. is the ideal drinking companion. The Grip Rocks double-wall vacuum insulation will keep your hot drinks hot, and your cold drinks cold longer than standard drinkware. Enjoy your evening whiskey by the fire, and refill with coffee the next morning. You’ll have a solid grip on your cup with the ergonomic design, and the rubberized bottom keeps you cup where you want it to be.