The Asobu® Orb Bottle is made of double wall, vacuum insulated copper lined 18/8 stainless steel, so it will keep your drink hot for up to 12 hours and cold up to 24 hours. The ergonomic easy grip shape makes it an ideal travel companion. The stunning look of this eclectic bottle sets you apart from the crowd of standard "so what looking" insulated bottles on the market today.