Just the right size for long mornings or anytime you need a fuller cup. The 12 ounce Stay Hot Camp Mug has the legendary performance you expect from a Stanley , with fewer trips to refill. This one is built to last, with solid 18/8 stainless steel construction. Double-wall vacuum insulation keeps your favorite drinks Hot for hours, and the secure press-fit Tritan Drink-Thru Lid prevents splashes and makes sipping easy. Keep it with you in the backyard, take it on the road, or enjoy it while lounging by the fireside.