The appealing affordable Klismos Stool from West Elm is available in both counter and bar heights. 

Above L: The 30-inch high Klismos Bar Stool in a chocolate or barley finish is $89 (or $169 for a set of two). Above R: The 26-inch high Klismos Counter Stool in a chocolate or barley finish is $89 (or $169 for a set of two) at West Elm.