The Everyday Camp coffee mug from Stanley is made of 18/8 stainless steel with a Tritan drinking lid. Its double-walled vacuum insulation keeps drinks hot for up to 1.5 hours or cold for up to 3 hours. The mug has a robust construction and a splash-resistant press-on lid that makes drinking easy. It is also BPA-free. A practical coffee mug to take on a car journey or use while relaxing by the fire.