straw mug 1200ml. RCS certified double wall vacuum insulated copper mug, made from 91% recycled stainless steel that keeps drinks cold for at least 24 hours and hot for up to 9 hours. Features a Tritan straw and a lid with a slide function to prevent spills. The twist-on push-on lid made from 100% recycled plastic holds the straw securely in place and can be easily rotated to expose the drink opening. Durable powder coating on the exterior. . Hand wash only.