The 1200 mL / 40 oz Happy Camper is a double wall vacuum insulated mug made with pro-grade stainless steel. It features a durable powder coated finish and our TrueTaste ceramic-coated interior which preserves the taste of the stored liquid. It’s fitted with a comfort-grip and a narrow base that will fit most cup holders. The lid features a rotating cover which engages the Happy Camper’s three modes: Straw Mode, which holds the included reusable straw, Sip Mode, and Full-Cover?mode. has context menu