Bottle is double wall 18/8 grade stainless steel with vacuum insulation. Inner wall is plated with copper for ultimate conductivity to keep drinks hot for 8 hours and cold for 24 hours. On-trend, durable powder coating. Flip-top lid with straw for easy drinkability, suggest not to use with hot beverage. Carabiner handle. Wide mouth opening for easy cleaning and filling. Leed’s Exclusive. 25oz.