From workout to hiking session this 40 Oz tumbler is the perfect companion for all your adventures. Made from food grade 18/8 stainless steel with a double walled vaccum insulated construction to keep beverages cold and hot for hours. Tumbler comes equipped with a large ergonomic handle for easy carrying throughout the day. Twist on, slide lid prevents accidental spills and splashes. Fits in your cupholder for easy traveling and comes with a straw.